My money being ****** via MTN data deductions

I am continually finding MTN taking both my money and NOT crediting me with the data bundles purchased.<br> I bought 1GIG valid for 2 weeks, it said the data was used after 1week, then i checked it said i still have 260meg left. Could not access internet. I then loaded another R80 and bought R65 - 1GIG valid a week. When i checked again, it still showed only 260meg, the GiG no where to be found, when i checked money balance my money was also gone, it hey are always taking the \change"<br> <br> When i did electronic call centre check it says my number doesn't exist and phone keeps cutting my off"