I'm sending one document. No way am I sending bank statements etc, it's really annoyed me!!!!!

I feel your pain. I closed my claim aug 2014, have been asked to send in mortgage/rent/bank/CSA (never had a penny since my son was 4)/utility bills....you name it they want it - Im not even self-employed! HMRC never asked for my autobiography! We will stop your tax credits - go ahead - I aint even getting any!!! so, just rang them, asked for case number, asked how they could help. 'you've sent me a letter re: tax credits, which I no longer claim as my son was 18 last year' 'sorry but the systems are down so i cant update your details' (why dya ask then?) 'you will probably have to send in proof of his age' 'NO, I dont need to do that as HMRC have his details and run child benefit system, which I am also no longer claiming, plus his date of birth is on your system' needless to say I have got to ring back later to check if system is up....give me strength. so bloody annoyed! Like I havent got better things to do than be ringing them with unnecessary info.