No access to Self Assessment section as my AGENT is not working for me anymore

Hello I am currently having issues accessing the Self Assessment section of my account as my AGENT is not working for me anymore. I have contacted HMRC to try and regain access, but the experience was not a positive one. One of the phone operators was very rude and even lowkey racist towards me as soon as she heard my voice on the phone. She was not helpful in trying to regain access to my account and even hung up on me when I asked what questions would be asked to regain access. I have wasted over 4 hours on the phone trying to resolve this issue, only to be treated in such a manner. I have since contacted HMRC again to inquire about the details of my former agent and have all the necessary information, but it still is not enough to gain access to my account. The situation is becoming ridiculous. I am trying to avoid a fine, but it seems like I am unable to gain access to my own account. I hope that someone can help me resolve this issue as soon as possible. Is there anyone who could advise me how to regain access to my slef assessment secoing ? Thank you in advance

Hi,

When an agent completes a tax return, they should be doing this through their own account and not an account that is for you. If they were using an account that was set up for you then you will need to speak with our Online Services for help to recover the details.

Technical support with HMRC online services

Thank you.