Non use of BIS but charged for it

I noticed the other day that I was still being billed for BIS after I upgraded to a Samsung in Feb 2015. I phoned Cell C customer care (9/9/15) to query this and was told that I should have cancelled the BIS when I did the upgrade. After arguing with consultant that I was not informed about this at the time of doing the upgrade I was finally given a reference number -***. I received an SMS stating that my cell phone account will be credited with R191.90. I phoned customer service again today to ask why I am only getting back R191.90 and not R300, I was then told that I took out an early upgrade and that my upgrade only kicked in on my account in May. <br> <br> Besides the fact that there is clearly communication issues between Cell C consultants and customers I had a bad week end with signal...So much for using a Samsung which states Emergency calls only. <br> <br> I am really disappointed and thinks it is time to move on and get a new service provider