Billing issues

I've been trying to reach Vox to query my account and everytime I am transfered to a number where no one answers. I have emailed, called a few times and still my issue is not resolved. I have been charged for a service that I did not request and now I can't reach them to credit my account. I've also requested a copy of the recording of the sales call and still nothing. Hate that I am bound to a 12 month contract when all I've received in the 2 months of being with them is bad service.