A customer provided a check for a purchase of $1.99. Now her account is being charged for at least 6 additional drafts (using the information on the check). Our "expert" is out of the office. Help! What would be the appropriate declaration/affidavit for her to complete. These actually came through clearings. Any advise would be much appreciated.

I'm guessing the form you are looking for is commonly called the "Customer's Statement of Unauthorized Remotely Created Check" Here's a link to the Fed's quick refence on doing an adjustment:
http://www.frbservices.org/operations/checkadjustments/urcc.html

Hope this helps.

My guess is they didn't read the fine print and when they authorized the 1.99 it was "if not cancelled within x days, your account will be charged x amount of dollars each month thereafter.

we use our standard Affidavit of Forgery which the customer must get notarized. In the explanation portion I have them write, I did not authorize this remotely created check".