ACCOUNT DOUBLE DEBITED 3 MONTHS IN A ROW

I have a contract with Telkom and in December my debit order was returned, i was then asked to do a manual payment and was guaranteed that My account would then not be debited with the outstanding amount due in Jan. But ofcourse it was. I then called in and spoke to one of the supervisors and was told that refunding my money would take atleast 20-30 working days. The supervisor suggested i go to the bank which i did and had the debit order returned. I received a confirmation sms just after the 20th of Jan about the correct debit order which would come off on the 31st - Guess what...it didn't. My acc was suspended and i was told to pay manually again...and Guaranteed by Mpumi that they would not double debit my account again...and oh my lord...on 25.02.2015 - MY ACC WAS DOUBLE DEBITED AGAIN!!! What a shocker!!!! i immediately logged a call and asked to speak to a supervisor, who is never available...Menzi (his name) was supposed to call me back and i'm still waiting. I want my money back immediately and am not willing to wait 20-30working days!!!! This has caused a huge inconvenience as it affects my bank account and other debit order is need to pay!!! Service at Telkom stinks.