tax credits compliance form

teacher2mum

Grrrrrr just had one of those letters from HMRC tp say they meed more info about my tax credit claim cos I recently completed mine online and said there was a change but not provided any evidence..I had no changes this time but did 6 months ago I told them my son's DLA had gone down a level and they didn't ask for evidence....Anyone else had this?
I did the online form for the first time but I lost my first claim half way through and I had put a change initially because I thought it said I worked 29 hours not 30 but when I did my next one I submitted I had checked it said 30 hours on my form and so said no changes....On my first one I got all the way up to have I had any other income and I had to check on here whether the 29k I got from my house sale, but went straight out on debt management and bills so no interest was accrued. I was told on here it was just the interested accrued but I put no in this box because I didn't receive any interest from Natwest business account and also I wonder whether I should mention this in my evidence at all . Help I am already stressed with having my children 24/7 and two are autistic as their dad is hopeless and he still pays no CSA. I have applied for CSA in the last two months so could they be querying that? I have not received anything?