I have been with this company for many years. I c...

I have been with this company for many years. I cancelled this service because i found a more inexpensive way to bill my customers online and have them pay their invoice immediately. I was told to write a letter back in March. When i noticed i was still being billed in May i called and they told me the letter received was not legible but they knew it was for a cancellation. I finalized everything they needed but just a week ago they charged me monthly again. I was advised that was for charges for May. I was also charged $475. to get out of the contract. When i called to see if i could get credited for almost $50. in June they refused. STAY AWAY FROM THESE MONEY HUNGRY VULTURES!