Wrongly Billed

I have been a Cell C client for many years now. And for the most part have been very happy with the service I have received. I even got some of my family members to switch to Cell C, as I never had any problems.<br> I phoned your customer care line on the 04/03/2016 to find out what the R50.00 is for that I pay for every month. It says BlackberryBIS Hybrid Recurring on my invoice.<br> The lady I spoke to ask what Blackberry I have. Not sure why as surely it has to show on my account that I am using a Samsung. I told her that when I upgraded in 2014 I upgraded to a Samsung. She said that I am paying for the Blackberry service as I HAD a Blackberry.<br> I find this completely ridiculous. For almost 2 years now I have been paying for something that I cannot use and did not ask for. Surely this had to be deactivated when I upgraded in 2014 to the new phone. From 04/03/2016 the service has been deactivated. But I still find it truly unfair that I was billed for a service that I obviously did not use and did not need I would like to receive a reply regarding this matter. I would like a refund.<br> I received an email stating I would be contacted within 48hr, still no one has done so 10days on