Pathetic service by Cell C

Nov 2018 I changed my payment date with Cell C from the 1st to the 20th of each month. 3 Dec I received sms stating that payment is outstanding. I made payment and received sms thanking me, on Dec 10. Jan 4 I received sms stating payment outstanding for R496.17 and I paid it, receive thank you sms on Jan 28. Feb 3 I received sms stating arrears of R785.29. I could not pay and March 1 may services was suspended. On March 20 I went to Cell C in Bay West Port Elizabeth, where I queried my suspension. I spoke to Charmelle. I was told that I was FOUR months in arrears. BUT, on that moment, Cell C took R2400 out of my account, and account reflected R0.00 on their system. She showed me that full amount was just paid. The problem is that it was more than what I owed. Charmelle then logged a query about my data and airtime that I wanted for March, as did not receive that due to not paying, but now that my account was fully paid, I want my data and airtime. I received sms with query number ********** 137. The lady sends them a query and I received sms stating the number. I also queried that fact that my monthly bill limit was on R719 although I never gave that amount. I ALWAYS set my limit on R200. Why would I use a weird amount like that? That proofs that they changed my limit themselves and thereby committing ***** by changing my payment details without my permission. I demand that they pay all amounts that I have paid in more than I would have if my limit stayed on R200 as I never gave them permission to change my limit. Charmelle said she will find out more about the situation and call me back. On Wednesday 27 March my wife went back to Cell C to ask about the query and showed the sms about being fully paid. She said she will look into it and give me a call. The second promise for calling me, in 7 days, but yet still, Im waiting for those two promised calls. And the number she gave me to call her if I need to, only rings, and never gets answered. Although Cell C took R2400 from my account (more than the amount owed) on the 20th of March, they send me an sms on the 29th of March, stating that I owe money, and telling me that my account will be suspended if I don’t pay. Cell C took R2400 out of my account which was more than I owed. Cell C did not give me data or airtime due to non payment, but now that I have fully paid the amount I owed, I want my data and airtime that I paid for. Cell C changed my Bill Limit without asking me or getting my permission. Cell C asks me for money 7 days after I have fully paid my account. What a pathetic service. I NEED my data and airtime. I need the extra money to be paid back that you took when you deducted the R2400 and I need my money back that you stole by setting my bill limit R519 more than what I have set it on.