My advice would be to send your letters Certified Mail with receipt. It will cost you a few bucks but I felt better with the piece of mind that I had proof they had been received. 2 different times I had to say, "the letter was signed for on February 28th", then all of a sudden they "found the note on my account". Just cover your bases. Also I unhooked my Dove, for you the Merc. and stopped receiving orders on March 1st. That way when the time came all I owed for was the monthly service fees and nothing else. This also helps get you out sooner when there is not money hanging around out there owed to you by other florists or FTD. Just my opinion. Got my final statement today and if it is right it looks like they did not charge me for April at all. Maybe it's a parting gift LOL!