Self-assessment portal unable to verify details

Hello, I have been waiting several hours now with HMRC customer care and no one picks up to help. I have called both the numbers provided to me 03002003300 and 03002003310. I am trying to connect with HMRC since December last year with absolutely no luck. I then sent an email to hmrcsupport@tax.service.gov.uk in order to get some help but all I got is I need to connect via phone and they provide me with the same numbers. I am in a vicious circle. I am trying to connect to my personal tax account profile since December to file a self-assessment as it said that will be quick. I am currently dealing with my father being diagnosed with Cancer and taking care of him since last year hence have less time to send the paper copy. Every time I enter the details it says my details don't match with the HMRC and no one is able to tell me what details don't match so I can fix it. I have seen many people facing the same issue. Is there a solution available? Kind Regards Piyush

Hi,

We would not be able to advise of the problem on this forum as we can't access your record. You will need to continue trying to get through to our Self Assessment team for advice.

Self Assessment: general enquiries

Thank you.