Discovery Email and Call Centre Terrible!

I have about 9 reference numbers from the email system and the call centre system.<br> At first i was trying to downgrade my membership, then i requested to cancel.<br> My service has not been downgraded or cancelled! Despite telephone confirmations and followed up in writing with reference numbers. Instead of assigning someone when the reference numbers get out of hand to deal with a case so that it does keep going in circles, they just keep asking for the same forms, the same proof! and now they want to bill for service i was told was cancelled?? What do you do to companies like this? Where do you go to report? They dont even have a complaints form on their website or online portal!