cellc still charging me after contract cancelation

I notified cellc that i wished to cancel my contract after the 24 months contract had ended. i sent emails i made phone calls i received emails back from cellc saying they were sorry to be loosing me as a customer. I have 5 or six reference numbers from cellc.<br> my contract ended on the 08/04/2015 it's now the 1/07/2015 and I'm still being billed. <br> They are probably the worst cellular service provider in south Africa.<br> I feel they just don't care about their customers hopefully new customers will see this and choose another service provider. <br>