Misleading information and then no feedback

I purchased a mobile Wi-Fi contract for 5GB per month (with 10 GB Night Surfer Data). There are two problems with this contract. 1) Originally the hours for the Night Surfer data started at 11 pm. I was not informed when Telkom shifted this start time to 12 midnight, and so lost normal data when I thought it was Night Surfer data. 2) I was told I could migrate to a different contract after 3 months if I wanted to, and that a 7.5 GB and a 10 GB deal were available. When I went to migrate, I was told there were no other options on my contract.<br> <br> I filled out the contact form on the website about these issues, and have still not received a response. <br> <br> I purchased this contract primarily because the Night Surfer data started at 11 pm, and because I could migrate to a contract with more data if my current contract turned out to be insufficient. Both of these reasons have now been nullified. I was told I have to pay a fee if I want to cancel it, even though I was misinformed. So I would like to know if I really am stuck with this contract until it expires. <br> <br>