BB10 not taking BIS but BB10 essential plan

a few weeks ago i called Cell C's customer care and asked to load BIS on my phone. the person that helped me was very polite, the process went rather quickly and the BIS was loaded. what the person failed to mention to me was that my phone was not eligible for BIS since it was a BB10 device and it required a different Internet package. i only realised this when phones data ran out and i couldn't access the Internet from my phone even though i still had BIS on it. <br> since this discovery i contacted cell c and i asked why i couldn't access the Internet even though i have the BIS loaded onto my phone and i was told that because my phone is a BB10 device i should have loaded a BB10 essential plan and not BIS. to save the R57 i spent on the BIS plan i asked if it could be changed to the essential plan since it was not really my fault for loading the wrong plan, the agent told me that they would have to investigate and then get back to me. i asked him how long this would take upon which he rep**** approximately 48hours (working days).<br> that was 3 weeks ago. i called cell c 4 times since and i am always told that they will get back to me...<br> i am still waiting, waiting, waiting..