CELL C ****************!!!

I moved to cell c some months ago & so far i have plesse with the service except the occassional network issues which i was aware prior to joining the network. Cell C has been running campaigns for free whatsapp & fb, which have since ended! Yesterday i recharged for 300mb & went on whatsapp next thing my data is depleted! Data which would usually last me 2 weeks, this is just on WHATSAPP, not FB or Insta or emails. Just this evening i recharged another 300mb, i'm appalled & shocked that not even an hour later, all applications closed on my iphone, just using whatsapp i'm already down to 180mb HOW ON EARTH IS THE RIGHT??? This is day light ******* & sonething needs to be done about this!!! I have had airtime dissapear & have been told it is because my data (which i have never switched off until now) was on. I'm appalled with CELL C & find them to be a network of no ethics!!! Seriously looking at going back to my old network where even a 100mb is enough for a week & not 300mb lasting only an hour!!! CELL C i'm so dissapointed use to tell friends & family about all the great things they had, but it was all a front & all they are is s company of ******!