Cancellation

I've been trying to cancel my contracts for almost 2 weeks, after a dozen phone calls and escalations and assurances that it will be cancelled, NOTHING has been cancelled yet, and I expect you will be debiting my account in the next few days for the next months subscription THAT I DO NOT CONSENT TO!! Your customer service is shocking, I've been a loyal customer for 16+ years and this is how I'm treated? I cannot wait to dump your useless network and take my business elsewhere, and I will encourage everyone I know to do the same.