Poor customer service and client quiet resolutionat telkom call a Center

I signed a contract(free me 20GB )for two numbers that is for my Wife and I with Telkom at the end of August 2018. The first payment for this was due on the 01/10/2018 but to my surprise my account got suspended on the 20th of September before the due debit date . I was very surprised and shocked by this and when I enquired the reason for their actions they cited that I have exceeded the limit . This really shocked me because I was unfami**** with how this contract works since it was my first time dealing with them. I asked for a statement which they provide and when I checked the statement I noticed that there were three additional numbers which I was not aware of on my statement. I raised this with them on the 20 of October and they asked me to pay half of the amount to owed so that they can un -suspend the account. I must also send the proof of payment with an affidavit that states that I am not aware of the additional three numbers and the certified I'D copy and email that to them so that they can investigate a ***** case and it will take 72 working hours to resolve. I did as they told me since I was desperate to unsuspend my lines. The time went on with no feedback then at the end of their 72 hours I decided to call them to find out what was happening with the case and by this time I had recieved a second statement and the numbers in question were still appearing and I was charged for them . I tried several times to make a follow-up but every time I would be told at the call center that they still waiting for a feed back from their back office I must wait. until now my case has not been resolved. And the money that they have overcharged me for 3 conservative months has not been refunded and I get so annoyed every time I am making a follow-up on this because it's like I'm starting afresh all over again cause I'm dealing with a new person and it doesn't look like they do log or update the history of events or follow-ups on a clients profile