INCORRECT CHARGING ON CANCELLATION OF CONTRACT

I cancelled my contract two months after finishing it and after being charged a non discounted contract rate (still flat), I was told I would pay a pro rata amount for 8 days (1-8 May 2015) based on the contract rate, so what should have been R74.40 was R564! I was promised a refund in 10 days after complaint and I have been messed around by various call center agents. Masego herself told me I'd be charged prorata and escalated it, now she has been off sick and tells me to call the call center again - what to be messed about. <br> Maybe Cell C should spend money on their own towers and training before buying contracts out for R10k as their network is pathetic!!! I have never been on internet or a call for longer than 1.5 mins without it dropping and I am not even 10 km from their fancy new offices in Waterfall!