Refusing to clearup account that was billed 3 in one month

I have a Telkom contract in June I missed my debit order then telkom debited my account in July on the 13th, 20th and 25th (different amounts, amounting to R4721.36) when I called Telkom mobile they said to get clarity of why did they debit so much on my account; the consultant said the collectors debited for 2minths and they can only see 2 payment not 3 she then said they were going to reverse the last payment as it is way more than the amount they were supposed to debit. Fast forward to today 15 Aug 2018 I went to a telkom store in N1 city to do an upgrade was very shocked to find that my account was behind but they don’t know why as it is up to date(not sure if I’m making sense) was advised to contact the call centre so that they can escalate the issue, i did that spoke with Koeketso who told me the was nothing she could do I must just wait 7days for the system to update and visit the store again, I asked her togive me a ref number but she said she was not going to log a case for this issue I need to wait till the system updates it self after asking her many times to log the query she then said she was going to escalete to her manager i must call back in 24-48hrs to check.

I feel that Telkom is inconveniancing me for no reason as I have paid everything I owed them and that I wanted to upgrade for an August deal which I may miss because of their system.

NB : the June debit order went off early that the arranged date, my denit order should go off on the 1st of each month not last day of each month