Failure to cancel my account

I have been trying to get my account cancelled for 3 months now. Despite numerous requests on my part, Netstar continues to keep my account active and tries to charge me every month for a service I do not want. <br> I have made several phone calls and have also tried sending emails via their website email address. Most of the time their cancellations dept is not reachable and I am forced to speak to accounts to leave a message for the relevant person. To date I have still not received a call back regarding this.<br>