Service not delivered - line barred

My cellular number's data bundle runs out every month after 1 week. So I phoned Autopage Cellular to activate a bigger (500 Mb) data bundle. This happened in the beginning of June and July. In July the consultant assured me that the data bundled were loaded. At the end of August I received a bill for data usage of R700. I spoke to a couple of consultants, entering into a dispute about the amount. I have asked for the bigger data bundle for 2 months but they did not activate it. It is not my fault the bill was so high. Now I have to phone every other day to open my line for the past 2 weeks. The reference number for the dispute is 829499. Today my number was \hard barred"because of this problem"