Vodacom upgraded system and changed my subscriptio

Vodacom has had a system upgrade and changed my subscription. As a result of this, I have lost my data (1.3 gig) for Feb and has not received any data for March. I have phoned in and logged a call Ref S3/GP23W/W6SYO a week ago but no one has helped me. My previous contract was a 2Gig MBB 24 months top up. When my data was finished, I would load airtime for R79 and then convert it to 1 Gig data. As I need to use the internet for my studies, I loaded airtime on this contract, but now have to pay R149? As this contract was changed to Mygig 2 Prom as per the call centre.<br> On my previous invoices I was charged R109 for my 2 gig which is correct and it states 2GB MMB, but now it shows as mygig 2 promo@R99 24months. I did not change my contract and would like it to be rectified.<br> <br> The lady who logged my call could see the problem/error, but why can it not be fixed? Why is it taking so long? I cannot tell my college that vodacom is the reason my assignments are not submitted????<br> <br> <br>