Hi everyone I am new around here :) Anyway the reason I found this group is because I, too, received this letter from Concentrix, and putting it mildly, I had a panic attack over it. Took me a while to calm down. The reason I was so panicked is because no one lives with me, but the letter says they have information that an adult 'may' be living with me. I also panicked because the long list of things they have asked me to send I don't have which is the legal separation docs.
I visited my local CAB, still heavily worried, and the lady kept telling me to calm down and to let her read the letter thoroughly. I told her I don't have anyone living at my address and have been alone for five years with my children. I basically said they are accusing me of having someone live with me which is simply not the case at ALL.
Anyway, she gave me some very good advice, helped me write a letter to them. She also said they are not accusing me - they are simply on a fishing expedition to catch those out who are LAHAW.
I know it sounds silly but I asked if they can force me to pay for a legal separation - she said absolutely not ( it costs a lot of money) and also they cannot make me class as a couple of LAHAW if I am not.
She gave me some examples like someone may be using my address to make a claim for a benefit, or making multiple claims, or it could just be that HMRC have made an error (and they do make errors). They will look through the entries on your bank statements to see if you have money coming in from a partner or tied finances, and you should be prepared in case they challenge you on them. I think I saw someone on here that they were worried Concentric would turn up and do a home visit. If you look at WC7 no where does it state they will do that. If you invite them in and volunteer information then that is up to you. There are some things they cannot ask you but as I say if you volunteer it they will write it down. Make sure you are aware of this.
So, although she helped me a great deal, and tried to put my mind at rest I am still worried because I have no idea what information they say they have - it could be anything. If Concentrix at least told me what so called information they have at least I could defend myself.
Secondly, my other worry is them asking me for his bank statements. I don't know if it has happened to anyone else, but I will write back to them and say number 1 he is not their customer and number 2, they have his address, write to him asking him (he is on the electoral role for his home) for his rent agreement and bank details. He will most likely say no to them as he is not connected to me or them in any way. And if they were to stop my claim for some silly reason I will head straight back into CAB who said they will stand as my advocate and talk to concentric on my behalf.
I sent back my renewal and I had a text today saying they will give me a decision in 8 weeks.
She also said don't sent them any more than you need to. They are just fishing, and they get 'paid' for those that they find or hold their hands up.
If you are worried go to you local CAB and get their advice on board.