My mortgage advisor has requested an SA302 for my 2022/23 HMRC tax calculation. This will be the first self-assessment I do, I recently (in 2022) became part owner of a property and receive income from this, otherwise, I am in full-time employment on PAYE.
I have tried to access SA through the Government Gateway, but I cannot verify my identity - my passport and driving license are correct, I have to assume maybe it's my National Insurance details - was I supposed to tell them when I got married and changed my name? I cannot remember if I did so. They also cannot verify through electoral or credit reference, despite my having Experian, and registered to vote.
After using the web form, the only suggestion was that I call - but every number tells me I cannot get help with this over the phone. Can anyone help, I'm in circles and getting stressed about it. Thanks