Unauthorized deduction

Over a year ago I ordered from this company and after they sent a second order I called and cancelled with them.  Now 1 year later ,they are billing my checking account for $79.00 which was not authorized. Today 12/11/09 UPS dropped off coffee and some stupid travel cup. I don't drink coffee my X did, I did not re-order and I don't want it.  Since they only give a PO Box, I'm still returning it with a very nasty letter.  I left about 12 phone calls with 3 different phone numbers I can be contacted at and not once did they return my call.  If I get another order or any more money taken out of my account I'm sueing this company for theft and fraud.