No response to cancellation request

Today discovery deducted double the premium amount from my bank account today despite my efforts to send them all the documents they asked… I have tried contacting them through email, the site and phone just to be held on a waiting line for over an hour with no response. I have been a member for 14 years… this is a disrespect against their clients. The only response I get is them asking for documents I have already sent 3 times! Now they took my money and won’t answer my attempts to cancel it… they ask for a months notice but won’t answer my requests. I will come back here to say if they refuse to cancel this nonsense… I am tired of this.