Unprofessional service

I am utterly disappointed in the service I received from Std Bank. I have paid my mother account via my internet banking on the 7th Jan 2015. I made the mistake my swopping the beneficiaries around and the payment was not allocated to the account. After email the proof of payment to STD bank on the 12 th Jan 2015 the premium is still not allocated to the account. We received daily sms's or calls just to hear the account is in arrears. I have spoken to nearly everybody and the rehabilitation centre repeating the same thing over and over. I have used my airtime to speak to them just to be put on hold for over 17 min and nobody gets back to me. I have asked them not to contact me mother about this, she is sick, as they can see on the system that the payment must be allocated but no one takes note of this and they just keep on phoning and sending sms. Initially I was told this will be resolved by the 21st, then the 25th. When I spoke to a teamleader on Friday, he said this will be resolved and he'll phone me back.. Well he got one of his staff ladies to phone me. If they cant deliver stop making empty promises. In the meantime the account builds up interest.