Billing

I had a service on my contract number with cellc called get more. I called in to the call centre to have the service stopped i was advised by a cellc representitive that the service will be stopped. when i recieved my bill the following month it was still added on and debited from my bank account. i then called up again and queried this i was told that cellc did not stop the service they just suspended it and therefore the following month i was doubled billed for the service. I feel that the advisor should have made me aware that they can only suspend the service and not remove it. they also refused to refund me back.