No Internet Service on Mobile

I have not had internet service on my mobile for the whole week, since the 1st of June 2015. This is really frustrating that I am paying for a service that I am not receiving. I use my phone as a modem to do my school assignment. I have not been able to do my school work the entire week. I called the call Centre reported, wrote on Telkoms FB about this, which they advised me they will get it sorted. I am still waiting, this is taking forever & it is really unfair especially when I am paying for it on a monthly basis.