false advertising

I have tried to cancel my cellc contract line since March 2014, i have been to the cellc head office 2 times, i have phoned the call center i don't know how many times they cannot resolve my problem<br> <br> 1. False Advertising 1GB data advertise not allocated they cannot find the contract I signed<br> 2. im spending a lot of money calling back people (with a different service provider)because they cannot get hold of me on cell c. I have been told a thousand times they are working on their network issues but its getting worse instead of improving.<br> 3 I have a limit on my R500 contract but I got a R1800 bill last month the lady who was helping me at the head office told me I cannot cancel the contract because she has rectified the problem its now back to my normal limit but I still have to pay the last month bill.<br> <br> Im up to my end wits dealing with this, can someone cancel my cellc contract please!!!<br>