Telkom is robbing loyal customers

I am so upset with Telkom. In August 2019 I receive a call from Telkom call centre, they were offering me a R99 sim card that has 1 GB , I took the offer, the lady that phoned me said she is going to give me a second SIM card for free so that I can give to any member of the family to phone each other for free, the lafy told me that I am going to payR99 a month, I accepted the second SIM card because I was told that I will only pay R99 for both SIM cards which i waited 3weeks to be delivered. After a month the bill came and I noticed that the second SIM card is charging me. I phoned and ask them to cancel the second SIM card because it charging me, They did cancel the second SIM card but at my surprised the bill for end of September they charged me migration admin fee of R400 for cancelling the second SIM card, I phoned them in September the 4th to ask why did they charged me R400, The lady I spoke with told me she is going to escalate the matter to Bill department. I waited 7 days but no one phoned me, I was told that they will call me soon, my debit order date is 29 which means I am forced to pay this R400. Even today no one is calling me. Why Telkom is charging me for something that I did not ask for at the first place? This is a day light *******. I am thinking of cancelling all my contracts with them.. The same with my router they charged me R202 for penalty fee because i missed a payment which i knew i never missed the payment because i did a EFT payment like i do everymonth. MY email is ***