Contract cancellation !!

Recently I received a phone call asking whether I would be upgrading my cellc contract, I advised that I would like to cancel my contract ( recorded line) once it came to an end on the 10th of April.<br> <br> I'm currently still being billed for something not used and have tried on multiple occasions to speak to a consultant, Yesterday no consultants were able to help and the service was horrible. I was passed on between consultants for over 25 minutes.<br> <br> Could someone please advise on WHY this is the case, Please stop my contract so I can go on pre paid en get my number on my new contract.<br> <br> This is influencing my business and will not be taken up lightly. You leave me know choice to go to a public platform and inform others of this disgrace.<br> <br>