CELL C INCORRECT ACCOUNTS

I was charged for smartdata in December and I resolved the problem myself, no one from customer service assisted. I did an eft in January to bring my account up to date. The account showed I'm in arrears and despite phoning twice to point this out, it was not corrected. In February 1,484.72 was taken from my bank for the alleged arrears. I had it reversed and the correct amount was taken from my bank account at the end of the month. I received correspondence informing me that my account is in arrears. Yesterday Keesha Manuel from the accounts department phoned me asking me when I will be paying for the arrears. I asked her to check her facts and when she realized that she was wrong, instead of saying that she will have the account corrected and apologizing, she put the phone down. I am unable to use the 4.67gb bundle data on my router because I have no internet signal! Need I go on? I have been with Cell C for years and this is the first time that I have had such terrible service and experience