Errors made by MFC remain unsolved

More than a month since contacting them and my issue is still not fixed. This is now my fourth complaint on Hello Peter. To be fair the they usually call me when they see these complaints, they apologise and tell me they'll fix it, and then they tell me they'll "call back". Sometimes they even call back to tell me they've logged the issue and they'll "call me back" to confirm it's sorted. This "call back" doesn't happen, and the issue remains unsolved. The issue I might add is a mistake made by MFC when creating my account, not by me.