SKS Associates Northern Leasing Withdrew from my account for property tax on cc terminal (1998-2002) New York, New York

Today I found a debit on my bank account for $89.57, from SKS Associates.  I called the number on the statement and spoke to a person.  He claimed the company had audited my account and stated that I owed them money for porperty tax on a credit card terminal that we had from 1998 to 2002.  I told him I would be calling my bank to reverse or cancel the amount they had deducted from my account.  He stated that it was tax that I owed and their was no statute of limitation on tax.  I asked for a copy of the contract with my husbands signature on it and he said he would fax it to me and would mail copies of the account to me.  He asked me to wait til I recieved the information before I called the bank to stop the debit.  As soon as I got off the phone I called the bank.  They are sending me a claim for to confirm in writing what had happened. 

I don't understand how a person or company can remove funds from an account without persmission. 

Has anyone heard of property tax being assessed on a credit card terminal?