Receiving a letter from PO Box 69983 London can raise questions, especially if the sender isn’t immediately clear. For many in the UK, this specific PO Box is linked to Klarna, a financial services company offering Buy Now, Pay Later solutions.
The unexpected arrival of such mail can cause concern regarding possible debts or account activity. Understanding who uses this address and why it appears on your correspondence is important to address the situation confidently.
This article explores everything about PO Box 69983 London, from its legitimacy to what action you should take upon receiving a letter.
Who Uses the PO Box 69983 London E16 9DN Address?
PO Box 69983, London, E16 9DN is primarily used by Klarna Bank AB (publ), operating under Klarna Financial Services UK Limited. This postal address is a centralised point for Klarna’s written communications within the UK.
Klarna uses this PO Box for various types of outbound and inbound communication related to accounts, payments, or complaint handling. It serves as a return address and is mentioned in Klarna’s official documents and on their UK contact page.
This PO Box is not associated with random spam or third-party organisations. Instead, it is part of Klarna’s structured communication system. Users have reported receiving letters from this address for reasons such as overdue balances or clarification requests.
If you find this PO Box on any correspondence, it is most likely from Klarna or one of its UK-based customer service or collection departments.
What Is PO Box 69983 London and Why Is It Being Used?

PO Box 69983 London is a secure and centralised mail collection point used by Klarna for processing written customer communications.
Companies like Klarna often use PO Boxes instead of physical office addresses for efficiency and mail management, especially when dealing with large volumes.
This particular PO Box allows Klarna to handle returned mail, complaints, and payment queries systematically. The E16 9DN postcode links to the East London area, where many PO Box facilities are located.
Klarna uses this address to ensure customer documents and letters are securely routed without disclosing internal office addresses. It is also listed in Klarna’s formal complaints handling documents, ensuring legitimacy.
When you see this PO Box on a letter, it’s often a formal piece of communication that requires a timely response from the recipient.
Who Is Klarna?
Klarna is a financial technology company founded in Sweden, known for offering Buy Now, Pay Later services to consumers across the UK and Europe.
The company operates under Klarna Bank AB (publ), with its UK branch registered as Klarna Financial Services UK Limited. Klarna enables customers to make purchases online and pay in instalments or after delivery, providing flexibility in managing finances.
Klarna’s UK office is located at 10 York Road, London SE1 7ND, while the headquarters are in Stockholm. With millions of users globally, Klarna has become a popular choice among online shoppers.
However, its services also involve responsibilities such as timely repayments. Klarna uses the PO Box 69983 London address to communicate about account matters, missed payments, and other transactional details.
Why Did You Receive a Final Notice from Klarna at This Address?

Receiving a final notice from Klarna using PO Box 69983 London typically indicates an unresolved financial issue or administrative query.
Common Reasons to Receive Mail
- Missed Instalment Payments: If you’ve used Klarna’s Pay Later or Pay in 3 service, an overdue balance may prompt this type of letter.
- Outstanding Invoices: Letters may relate to unsettled payments on online purchases made through Klarna.
- Account Misuse or Fraud: If someone used your details to open a Klarna account, you may receive mail mistakenly.
- Returned Mail or Failed Emails: When Klarna cannot reach you via digital means, they send letters to your postal address.
- Final Reminder Before Debt Collection: Some notices are issued before account escalation to external recovery agencies.
It is essential to verify the contents, check your Klarna account online or via the app, and determine if the letter applies to you. Ignoring the letter could potentially lead to further financial consequences such as credit score impact.
Is the Letter from Klarna at PO Box 69983 London Legitimate or a Scam?
Letters from PO Box 69983 London are generally legitimate if they reference Klarna and contain correct formatting, branding, and account information.
Klarna is a regulated financial institution, and this PO Box is listed in their UK complaints handling procedures and official contact points. However, due diligence is always advised.
If a letter seems suspicious or contains vague threats, verify the sender details before responding. Klarna will never ask for sensitive information like passwords or card numbers through post.
A genuine Klarna letter should provide clear contact details, a customer reference number, and professional formatting. If you’re uncertain, contact Klarna directly through their official website or app. Avoid using contact details listed only in the letter if they appear unfamiliar.
What Should You Do If You Receive a Letter from PO Box 69983 London?

Receiving a letter from PO Box 69983 London may feel alarming, especially if you were not expecting communication from Klarna. However, the first thing to do is remain calm and approach the situation methodically. Start by checking the authenticity of the letter.
Look for your name, customer reference, branding, and Klarna’s contact information. If anything appears unusual, avoid responding directly to the details in the letter and instead go through Klarna’s official channels.
Verify Account Information
Log into your Klarna account via their website or mobile app to check for any outstanding invoices, missed payments, or notifications. If you do not have an account or find no records of any transactions, it’s crucial to flag this with Klarna.
Document and Respond
Take photos of the letter and envelope. Then, contact Klarna’s customer service and provide the reference number mentioned in the letter. They will confirm whether the letter is legitimate and what actions are required.
Timely action can help prevent any escalation or damage to your credit file. Never ignore such letters even if you’re certain it’s an error, follow through for your own protection.
How Can You Contact PO Box 69983 London for Clarification?
Contacting Klarna about a letter from PO Box 69983 London is straightforward. Klarna provides several official channels for communication. For most enquiries, you can use their support page, email, or customer service phone number.
Always use the verified contact details provided on Klarna’s website to avoid interacting with fraudulent channels.
Klarna’s support team can help you verify whether the letter is genuine and provide steps for resolving any concerns. Below is a quick reference table for Klarna’s UK contact options:
| Contact Method | Details |
| Website Support | www.klarna.com/uk/customer-service |
| service@klarna.co.uk | |
| UK Office Address | 10 York Road, London SE1 7ND |
| PO Box for Letters | PO Box 69983, London, E16 9DN |
| App Live Chat | Available within Klarna mobile app |
Avoid third-party contact details not listed on Klarna’s official site, and don’t reply to any suspicious links or QR codes in the letter. Official communication ensures transparency and your personal data remains protected throughout the process.
How to File a Complaint with Klarna or Escalate the Issue in the UK?

If you believe the letter was sent in error or you’re unsatisfied with Klarna’s handling of your concern, you have the right to file a formal complaint.
Klarna outlines a clear complaints procedure, which includes the following steps:
- Submit your complaint via Klarna’s website or email
- Wait for a response within 14 days
- If unresolved after 8 weeks, escalate to the Financial Ombudsman Service (FOS)
You should include all relevant documents and records when making a complaint. Klarna is obligated to follow up with an investigation and formal response.
If your complaint involves data misuse or incorrect identity handling, the Information Commissioner’s Office (ICO) may also be contacted. Consumers are advised to maintain a record of all complaint communications and reference numbers.
Conclusion
Receiving a letter from PO Box 69983 London may be concerning at first, but it is commonly linked to Klarna’s customer service or collections department.
The address is legitimate and widely used by Klarna in the UK. Always read any letter carefully, check your Klarna account, and respond appropriately.
If there’s any doubt, reach out through Klarna’s verified channels to clarify and protect your financial interests. Understanding the process will help you respond with confidence and resolve any potential issues swiftly.
FAQs About PO Box 69983 London
What is Klarna’s complaints handling process in the UK?
Klarna follows a documented UK complaints procedure, offering resolution via internal teams first and then external bodies like the Financial Ombudsman Service if unresolved.
How long does Klarna take to respond to complaints or disputes?
Klarna typically responds within 14 days. For complex cases, they may take up to 8 weeks, and consumers are informed throughout.
Can someone else’s Klarna letter end up at my address?
Yes, especially if previous tenants or individuals used your address fraudulently or by mistake. Always report unrecognised mail promptly.
How do I verify a PO Box address like 69983 London?
Use Royal Mail, UK postcode tools, and Klarna’s official site to verify that PO Box 69983 E16 9DN is registered to Klarna.
Is PO Box 69983 London associated with any other companies?
Current records and user reports indicate it’s primarily used by Klarna, particularly for customer service and returns.
What documents should I keep after receiving a Klarna letter?
Retain the envelope, original letter, and any correspondence. Take photographs if needed and make notes of dates and interactions.
How do I prevent future unsolicited or mistaken Klarna letters?
Contact Klarna directly to remove your address, register a complaint, and use credit report monitoring to check for identity misuse.
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