UPN Services Fraud Check Scam, debit for $399.00 Champlain New York

A fraudulent check created by UPN Services in the Amount of $399.00 debited my Bank Account. The check was made payable to: Landmark Clearing. I do not have any knowledge of these companies, nor do I understand how they got access to my bank account information.
I went to the bank to straighten this up and to express my displeasure to my bank about the check they cashed and debited my account. A mini investigation by a bank representative disclosed that the check had gone thu three secured websites before reaching my bank account, and the check had been deposited in a bank in Texas! This is a Scam of the utmost brilliant proportions. The bank said that they would straighten this out for me.
The police said that this in an internet check scam, and that I have to file a police report in the state and county where the check was cashed. By the way, if this happens to you, file reports with the Better Business Bureau.
Beware, people, monitor your credit card and bank account vigilantly. I am not sure how these crooks got my information, and I know that the BBB is not fast enough to stop gypsy 'companies' who know how to do this.

Mary
Catonsville, Maryland
U.S.A.