Cell C thumbs down

<p>I had a contract with Cell C and on the 10th May 2016 it expired, my s5 was paid up and I did not want upgrade so I called to cancel it. Month end they debited saying it was because I did not cancel it a month in advance. Now I just received a statement again R544.60 to be debited again 30th June. I have no idea why and when we called to quiry they said they never received my cancellation even though I did it. This is sooo not on because I even lost the phone and blacklisted it and now they still taking my money for something I cancelled and thats no longer there.</p>