I received a letter today saying my child tax credit is under review because they have run a credit check and can see my X partner as still living here. He does still live here but we live as permanently separated (until we can afford a divorce) and I have always told them this. They themselves told me I could claim as a single parent if we were permanently separated but still living in the same house. We were forced to stay together due to severe financial problems with neither one being able to afford to move out. He pays me maintenance, which I use to pay food and some bills but he does pay some of the bills also. He eats, sleeps, washes and lives separate from me. Most of the bills are in my name except for the council tax which we never bothered to amend. I can't understand why they have pounced on me when they said to go ahead and claim in my circumstances anyway. My bank account is in my name but a couple of bills are still in joint names. Apparently we can now be in trouble for this? If he is paying the mortgage and some bills because he lives under the same roof but separated from me, surely they can see he would pay some bills? Has anyone got any advice on what to expect as I get a bad feeling even though we really are separated and they themselves accepted that without question till now? Very worried ty