Thievery billing by telkom

I took a cellphone last year September 2019 with telkom and first month I made sure the funds where there but they did not debit. I went in the following day to ask why they did not debit . The consultant at centurion said to me no we dnt debt the first month but they will double debit the next month . So I relax and went home. Following month . They didn’t debt again . I went in to ask again but no this time I was owing 3000 for two months cause they never debted 700 that was suppose to be debited monthly which to me is 1400. Then I knew something was wrong. They where over charging me on debts that where not debted by them while the money was in my account. I then further enquired with no luck. Every time I go in to the shop they tell me they dnt deal with billing someone will call me from the billing department And when they do , they dnt help they just read what’s on the system. So I knew this was a failing mission. So I decided to close the account. I asked them first how much it would be to close the account and pay for the device. They told 12500 and nothing else . So told them to close the account and I’ll pay for the device. They closed it and told me they did , gave me an invoice to pay for the device in November and I left. Came December I paid in 2000 to see if I would get an invoice that I paid , nothing! Then I knew nothing good would come out of this . Fast forward this month . I have not received one invoice but I got handed over to the lawyers! I had made another 2000 payment on the 6 of June 2020 through checkers and when I phoned in yesterday to see if they are receiving my funds, they said no! So I called the lawyers and sent them slips of prof of payment to arrange to get this out the way, but I found out that the account is still open after I closed it and they are still billing me on data I dnt receive or rather asked them to close the account back in Novermber. I have paid 4000 to this bill that was 12500 but I still owe 15000 something. This billing and services has been the worst and senseless . I refuse to pay any difference but the phone as I agreed to pay only the phone . So please some one from telkom get back to me to resolve this cause I won’t pay any difference. I’d rather pay a lawyer to take this up with you guys, this is bad and totally absolute madness! Dnt take up contracts with Telekom please , they are *****’s !