TERRIBLE MTN SERVICE, overcharged for data!!!

The problem has been going on for more than two months now :( there is not enough space here to tell the whole frustrating story.<br> <br> One of the main problems is that I have had adequate data on my account and have wi-fi at home and at work and yet for the past two months my ability to make calls, send messages or do anything with my phone has been suspended after 8 days of the 'new month' and I was told that I had exceeded my credit limit with an amount of more than I would normally spend in a month.<br> <br> The first time it happened (in May) was during the MTN strike which meant that I was without any cellphone communication for a whole week, as their call centre was on strike and that is the only way to get reconnected. <br> Then when it happened in June - I called the call center and i was told they would invesitgate - no feedback for two weeks. they took R1522 off my account (data related i think - and i have proof that i still have data) and my bill is normally not more that R700-. <br> I went to the MTN shop at century city 15th July - the MANAGER assured me she would get back to me - i've emailed her twice - no feedback yet. will MTN take EXTRA money off my account again?<br> PLEASE HELP!!!!!