vodacom messing up with double debits. #unhappy

at the end of 2015 i owed vodacom R1717,76 which i knew that was going to be debited from my bank on 31December 2015. <br> <br> when i get the sms from the bank, it states that 2 debits were done for the same amount. i immediately call the call centre and they said it was a mistake on their side and numerous people were double debited and they will escalate and sort it out, which they did.<br> <br> when the double debit took place i never have sufficient funds for the second debit to go through, which brings me to my problem.<br> <br> the call was already made to vodacom saying them about the double debit and they have put my bank account in a minus. a few days later i get an sms from my bank sayin that vodacom has put in R1717 into my account. <br> <br> i acknowledge that i need to pay vodacom cos what was paid to them was given back to me. they are contacting me and im saying, fair enough, i owe them the money but when they gave me back my money it was used up unknowingly. i did contact their call centre to make an arrangement to pay but they want the entire amount. if they didnt make this mess up in the first place i wouldnt be posting on this site. ive never had an account problem before, only now.