bad service

im trying to explain to the agent that i was debited twice he says he can only see one transaction which just settled i must go to the branch, i do not have time for that as im at work. and this is the second time this is happening and even last time the call centre agent could not help me.. money was taken off when it was reserved on the 1st of October(delville motors) i no longer had access to that R150.. and my available balance was then 150 less.. now the settlement is taking place last night and im debited another 150?? why? please refund my money asap as i need this money.. and i dont understand why must i get an sms when the money is being settled because every time that happen i experience this problem where as on the other transactions i don't get an sms for settlement and i never have a problem with those.. only these ones where i get a settlement sms on