SERVICE CANCELLED BUT PAYMENTS CONTINUE

My 2-year contract (credit card machine rental) ended mid November. Because I was dissatisfied with the service during the contract period I cancelled my contract a month prior to it expiring. Technician from SureSwipe came on 12.11.2015 ( 3 days prior to the contract expiring ) and took the credit card machine. Not only that I was not reimbursed for the period I did't use the machine, but I was billed again today for the following month and at a higher rate (month rate vs. contract rate) for the credit card machine that was taken away. Charging for the service you are not providing is not just ********* and unprofessional, but surely ******* and ********.