Wrongfully handed over

<p>I was a Neotel cusotmer for more than 2 years, then finaly decided to terminate my service due to decresing internet speed. I called customer service for termination, then I was advised to send an email. on the same day (29 Jul 2016) I sent termination of service request, 10 days later (08 Aug 2016) I recieved notification that the service will be terminated on the 31 Aug 2016 with Reference Number: SREQ_ ********** 80.</p> <p> </p> <p>I was billed at the end of August as the consultant on the phone advised that I will be billed, which was not an issue. to my suprise I was also billed in October 2016 after the service was supposed to be terminated a month back. I reversed the debit order and stopped further debits from Neotel, and now to my supprise I received an sms saying I have been handed over to debt collectors.</p> <p> </p> <p>Please assist with resolving this matter.</p>