I reported a ********** act that was done with my ID after noticing that my bank account was debited by homechoice without having opened an account with them

I reported a ********** act that was done with my ID after noticing that my bank account was debited by homechoice without having opened an account with them. I communicated with them and they sent me a paid up letter and I also did an affidavit and they advised that it would be cleared on my itc profile, recently I noticed my credit score going down as I enquired boom 8 months later still homechoice saying that I owe them. Now I can't do anything that requires bank applications because of that.