Data received that needs to be reversed

On Monday 13/07/2015 I notice Vodacom had a problem with loading data as it kept giving me an error saying that the service is unavailable try again later (E55). Later that evening I was then loaded with 8 x 500mb of data bundles which expires on the 19/07 - which is impossible to use. I then called customer service to complain or rather explain that I don't need so much of data. To which the consultant had then escalated the complaint to technical and advised that it would be sorted out the next day (Tuesday 14/07). The whole of Tuesday I received 2 smses saying that it has been handed over to technical and didn't receive a call or had the data reversed. I called customer service again on Wednesday (15/07) to which the consultant had said that this issue was supposed to be resolved the day before and I had told her that I haven't heard from anybody and I need this to be sorted out asap! she advised that she has made a note on the system for someone to call me urgent today (16/07). I think this is so unprofessional that we have to beg Vodacom to sort out these issues. even if they reverse the data how am I supposed to use 500mb of data by the 19/07??? This needs to be sorted asap