No Service for almost a week

For the last week or so I get an error that my services has been suspended and that I should contact my service provider. I have now emailed the customer care centre multiple times, called 808 multiple times, and have been at the MTN shop about this. The last time I called 808 they told me that my line is NOT suspended and that I should restart my handset - I have done this multiple times and the issue is not resolved. I also have no data. I find this level of service unacceptable and can not wait for my contract to expire and move to another service provider!