Debit order went of 3 times at once

Vodacom has taken a debit order 3 times. I have phoned several times. No feedback. Promises was made that the amount will be paid back to me within 7 to 14 working days. I have reported this on the 26 November 2015. Today is the 11th and had to phone Vodacom several times. New call was locked that someone from the account department will phone me. No call was received... I was also told that the money is not going to be paid back after my 6th call to Vodacom. But that was not the information that i got from the beginning. The previous month vodacom has slipped up when i phoned and i had to pay for it. I did pay in the outstanding amount but the next day the debit order has gone off 3 times.. Reference number that i got last S3-9076K-KK30.... ALSO BIG COMMUNICATION WITHIN VODACOM THEMSELF.This is a new contract and very disappointed.