Billing issues

Morning <br> <br> I have being having a problem with my SIM .it giving me issues when connecting to the internet. it always bills me from the airtime not the data bundles. I have being experiencing this problem since I ported to MTN from Cell C. I have called a numerous times to have the issue addressed. I have being given setting which never worked and lame reasons y I'm billed from airtime. I have for while stopped using the sim card for internet.<br> Last night I tried using the sim card for internet I had a balance of about R2.60 when I made the purchase of data bundles. Unfortunately little did I know that was only buying headache and a licence for one of MTN \service champion"to call me bored"