Capitec, WORST bank ever

Capitec are *******, I've paid more than I was supposed to. I'm paying off my loan with these guys and the moment I pay more than the amount that I owe, the amount goes up by R300 then R400 extra than what I need to pay, my debit order went off and instead of the amount decreasing the amount increased by another R200. I will not recommend Capitec bank to anyone, you better off joining another bank that will treat you better. I'll take my business elsewhere to a bank that treats me better.