Home Choice payments

I've tried contacting homechoice regarding the EFT payments I make to them, every month they deduct more or less R7 frombmy payment stating that it's the bank taking the money from my payment, but I'm making an EFT transfer, I've threatened them lots of times due to my incorrect payments allocated to my account, I'm tired of this, I havr lots of emails with almost zero replies to it, and my account is still not rectified.