Verizon Charged Us for Eight Months of Service on a Cancelled Line [OR]

Location: Oregon

We cancelled service with Verizon back in October of 2015. We had one number ported out and one cancelled.

Today I received a bill - the first I have seen in a long time, since cancelling - indicating they had been charging us for the other line since October for a total of approximately $1032. All monies were deducted directly from our bank account, which my SO monitors (not terribly closely, I suppose).

Verizon is refusing to refund any money and will continue to charge us for this most recent billing cycle due to "having no notation cancellation of service was requested."

I was also told I could not record the call due to proprietary reasons and threatened with legal action.

We're probably screwed on this, but I thought I would ask.

Thanks in advance.