Aidan

Yesterday I was trying to get a self assessment when I noticed that my main adress and postal adress were incorrect. I attempted to changed the address but only got the change after I said I moved in last month when I have lived there for years. My address has been fixed now but it conflicts with my self assessment saying I have lived there for over 3 years. Do I need to contact you inorder to prevent conflict and to correct my move in date and remove the previous address that I have never lived in? If so how do I contact you? I tried finding a way to contact HMRC and I didn't get much help from the phone so I am trying here.