Homeloan double deduction

The poor service that I get from standard bank is so irritating. They fiddle with my homeloan account after interest increase, they don't send sms or email, they make changes without any documentations or consulting with me... I feel that if interest increase, Standard Bank should communicate on how much will I pay regarding my bond account. I've been communicating with them via emails but nothing happens .. My employer pays towards the bond bond account and they still debit money from my own personal account, even if I adjust because of interest rate increase, I even reversed the debit my account this month because I did pay via my employer after I called them asking about my statement ent. I dont want to be listed a bad payer because i pay the homeloan on a monthly basis.