BILLED FOR PAYING VIA THIRD PARTY YET I PAY EFT

I have been paying my account via eft every month yet I get R7 deducted each time because I apparently used a third party. I have had this corrected by their accounts department through numerous emails and a lengthy process. Then for 3 months I don't get a statement. I had to beg for it. When I get one its too find that they once again bill me for third party payments,. I have phoned their customer centre and to no avail. When you ask to speak to a supervisor there is never one available and they will call you back. I am still waiting for that call. My emails get read yet no one bothers to correct my account and reverse the incorrect fee. I phoned and spoke to a consultant at the call centre and she informed me that their bank, Standard bank, takes off the R7, not homechoice. And she cannot assist me as it is Standard banks problem. what amazes me as how many times a day they can call to sell you stuff but not to fix your account query. even when I complained about the products I received, nobody would do anything about it, I ordered two bath sets in two different colours and they were supposed to have bath sheets. only the one colour does. so I get told its old stock.