telkom *****ing my data and cash

By the 11 March I noticed I had no data, I called in to the call centre and asked them to tell me every day how much I used and when adding it all together it came to almost 36 gigabytes of data, I have a 50 gig contract. I can't even understand how I got to 36 gigs in the first place anyway but based on the information Kelebogile gave at the call centre Telkom still owes me almost 15 gigs, then we log a case and he tells me I have to wait 72 hours, now it is highly important that I am able to the Internet today but now I have to wait for Telkom's schedule. Can't wait for my contract to finish so I can go to Afrihost or another ISP.