Bad service at HomeChoice

I have phoned Homechoice on several occasions reporting the money that is being debited from my account but I was told that they cannot assist me without the details of the account holder. They have my details because i have an account with them, but I don't have the details of the account holder for the other account that is being debited from my account. Surely, they have the details of this person, but they are asking me for the details, my credit record is being destroyed because I have to reverse the funds every month. I hate the day I opened an account with HomeChoice, I don't know what to do now.