over charged

i upgraded my contract last year October. I was told my new monthly payment will R108.00.<br> In January i checked my bill it showed i owed R280.00.<br> i called the call center to enquire.<br> <br> They said they will get back to me within 2 days. <br> <br> I then called 2 days later after no response from cell c, they said they will get the team leader to contact me. he contacted me and said the issue will be corrected by end of January. <br> <br> Guess what its march and the issue is still there.<br> i dont know if this is what cell c refers to as \customer care"but its pathetic i want to be refunded for what ive been overcharged and expect to be re imbursed for the time waisted trying to sort out this issue. I am very disappointed with the service from cell c. I am customer with cell c since cell c started and never had issues like this. If this is to continue i might as well move my contracts to a service provider who can provide service both work and personal"""