Utterly disgusted at the poor service!

im so disgusted at the service im getting from this ******* network, i regret ever taking a contract with MTN, ive recently been debited crazy amounts of money which i had no clue of and there was no communication whatsoever, i made a mistake by calling into the call centre 808, i spoke to a girl named Nadedne Brown who was so rude from the beginning of the call when i was enquiring (i have the call recording, on my phone as well as email) I asked Nadene to stop being rude and she told me that if i feel that she is being rude, i should hang up and call again (the nerve) ive never had to deal with such terrible customer service in my entire life, she was screaming and shouitingh on the phone, i was not even sure if she was screaming at me or what, is this the calibre of people you hire at your contact centre? i was placed on mute for soooo long, crazy amounts of dead air, ger attitude stinks just like the network she works for!!!. thereafter i got an email from a Portia Mukaswe who works in the billing department who sent " Good Day Miss Salemane In response to your query REQ:***Kindly note as at 2015-04-01 OOB rating on packages changed to R0.87 excl. vatKindly note that the said invoices have been validated customer has been charged correctlyInvoice dated 2016-03-20 Day data used 1063.54MB – 500MB(Monthly allocation) =563.54MB X 0.87(Out of Bundle rate)=R490.27 excl.vat ( Amount customer was supposed to be charged)" i emailed back asking if i was suppose to be charge R490.27 as per her email why was i debited R1856, this all happened on the 21st of April 2016 but to date i havent got any response from her, i was shocked at that amount as i used that sim card for about a month and i got an sms stating id be chrged R700 and since then i took out the sim and stop using the phone, tIn Jan I was debited 169.00 as it was the amount I’ve always been debited because I was not using the sim, in feb I was debited 351.86 as I used the sim a bit, suddenly in March it was 944.39 which I reversed because I did not understand as the sms said R700 but after calculated I figured that it was the 700 plus 169 which I’m always debited, how did this now escalate to R1856 as after The sms I got for R700, I stopped using the sim. iasked the initial onsultant (Nadene) as she kept insisting i used the phone, i asked her when and she had no answer and eventually told me that the invoice she saw had no dates, i went to the northgate MTN branch and they could not see anything on the system, im just dissapointed in MTN, go ***** money elsewhere not in my account.....i and listen to the call i had with nadene and thats if thats her real name. i called on the 21st April with the number *** i called 808, i have the recording on my cell if you need it emailed. so sickening