I'm a tad worried as I've just joined mumsnet after reading lots of your letters regarding Concentrix and your tax credits, I recently had a letter asking for bank statements, all utility bills, all phone bills, council tax bill, and mortgage statement all for the last 12 months and I have sent them all in as they said they had info of another adult in the house, have I done right??? I assumed as it said they were part of hmrc I had no choice but to send them in to them