Westholme

I sent a letter Special Delivery to National Insurance Contributions Office, BX9 1AN, on 23rd July 2024 which was delivered the next day, 24th July. I am deaf and cannot hear the phone. I had to send a letter anyway as I included copies of invoices and other documents proving I was self-employed for tax years 2006-07 through to 2013-14. I want to make voluntary NI contributions for these years before the deadline of next April. The NI record on my Govt gateway account shows class 3 amounts but they should be class 2. Could you please confirm the letter has been received? My postcode ends with 5AP.

I became self-employed in 1983. I returned self-assessment tax returns for years until I was told I no longer needed to. I was VAT registered from 1986 to 2011 until I was told my earnings were too low. I've had no income since 2013/14 and I've been living off my savings since then. I am registered with Govt Gateway and I have a UTR. I want to make voluntary NI contributions going back to 2006/07 but the cost of filling the gaps for all the tax years since then is for class 3 NI only, with no class 2. HMRC have said they have no record that I have ever been self-employed. I sent a letter two months ago to NI Contributions Office with proof of self-employment (copies of tax returns, VAT registration and invoices) but they have not responded. When I phoned they said I need to update my details but didn't say what exactly. I moved house in October 2013. Nearly all my self-employment was when I lived at my old house. I tried to re-register for self-employment online (not form CWF1) but the application has been refused: "We are unable to process your application because the address provided does not match our records. WHAT TO DO NOW You will need to check or update your address before resubmitting the form." The online re-registration included correct new and old addresses. What do I need to do now?