Tatty service

i am very disapointed with the service that i'v been recieving for the last 3 months.I have a contract phone with Telkom Mobile, they haven't been deducting for the past 3 months and my account has been suspended since.. To think that i wanted to port my other number to them , but because of the service i don't think i'll go ahead and port it. I've been calling the call centre and they kept on telling me that it was a technical glitch but the funds will be deducted the next month which was in July...The didn't deduct again in july and o nly to find from my statement invoice that they always try deducting on the 15th and 31st of the month, which is costing me R8.50 everytime they try those unauthorised debits.Which accumelated to R51.. I am so appalled with the service.. i have made my close friends to port to Telkom as it used to be the best but ya.. Now i feel like i haven't made them port. I called again on the 14th of August 2017 and Spoke to Thulabone , who was so calm and assisted me nicely.. He said he logged the Query with case number ********** 6 and the query can take up to 72 hours for someone to resolve it and call me, i still have not recieved any feedback.. The money is still in my account not deducted as yet... I don't know whqat to do as this marks a Bad record on my Credit Bureau :( ..