3.5 Years still no joy

3.5 Years ago I closed my account, Paid up in fill asked for it to be closed, I still received mail and messages regarding my account, 18 months later I tried to buy a car and was told I had too much owing on accounts (Strange as I paid off and closed ALL my accounts 18 months ago. I got my credit report from Trans Union only to find I was still listed with an account with edgars (with a balance) (among others) I called and was pushed around and eventually told it was sorted out. Last year I checked again and it was a nil balance on trans union but the account was still there (this affects your ability to take out loans, buy cars and houses as the credit limit given whether in use or not plays against what you can get. I called again was told it was done, I asked for a letter and got one. However I am still receiving correspondence re: an account which is supposed to be closed. I can't check Trans union for a while but the account seems to still be open. I would like confirmation this account is fully and finally closed and that trans union has been updated with the fact that I paid and closed said account in 2011!!!!<br> <br> I am really annoyed with this.