bad service

I never understand why it must be a hassle to get to the contracts or billing department always have to go through the cell c consultant with bad attitude.i just wanted to get someone to explain why the hell this new tariff is affecting customers who already have a contract with cell c.isnt new tariffs supposed to affect new contracts? My agreemen/contract with them is for R429 every month so now how do u debit me with R439 on an existing contract that's expiring in 8 months time and if you go in to Change my contract amount where is proof that I agreed to that contract amount? If this is how cell c conducts it's business then I'd rather cancel it nd I surely won't recommend it to any one if they randomly change contract amounts in the middle of it . disappointed as always by the service and the sooner the contact end then it will save me time effort heartache and less stress to be on a network that doesn't even connect all the places you go...unhappy client! !!!