Unsatisfied customer

I am really disappointed in vox telecom. I had a month to month contract with you guys for the same service, and to my knowledge I pay upfront for the contract and at the end of the month the contract gets disconnected if you don't pay for the following month. Why is it that I am still being billed for the contract, this is ********* now my account is handed over to some debt collectors who I have no knowledge off. Please you need to stop this nonsense and stop robbing people of they money.