SKS MBF Leasing merchant processing audit, property taxes, equipment taxes New York, New York

Had opened an account with MBF Leasing in 2005 for credit merchant services and equipment leasing for a credit card machine that was "supposed" to be a month to month contract. 

Long story short, in 2009 after 4 years of battling with MBF about letting us out of the lease. We closed the account down and returned the equipment by mail.

Then I receive a letter dated February 21, 2011 from SKS Associates informing me of certain fees and taxes that were undercollected during the time of the lease.
Before I could call to dispute the letter, the funds in the amount of $105.31 had already been removed from my account. 

When I finally did get in touch with SKS, the man didn't even fully understand the charges but explained to me that they are non-refundable and to get in touch with my County assessor's office to verify that the funds were allocated to the correct place.

I have never heard of such a thing, and I am frustrated and angered by how this SKS/MBF Leasing Company has taken advantage of myself, my husband and many other people.
I even went as far as to let the agent on the phone working for SKS he might want to consider getting a better job working for a more ethical company. He replied that he just needs to pay his rent. I don't know that these employees even understand the complete lack of integrity this company has.