Pitney Bowes Unable to terminate long term lease Stamford Connecticut

We started out with a $27 per month promotional deal and when it ran out, our monthly bill jumped to $44. We got a notice that we could prevent future jumps in monthly bills by signing a lease. For some reason, we thought the lease was 12 months, but when we tried to cancel the lease, we found out it was a 39-month least. We asked what the penalty for cancelling the lease and we told, after repeated emails and phone calls went unanswered, that we must "fulfill" the lease.
We asked what is the penalty fee to terminate the least, they said the rest of the cost of the lease. This is truly absurd. I'm writing to Congressmen, the Better Business Bureau and the US Postal Service. A company that clearly doesn't have reasonable terms to support small businesses should not be authorized to print postage by the US Postal Service and our government. Pitney Bowes does not support small businesses and anti-American.