I followed through with this as when I started rejecting almost all of the orders from FTD.COM I was irate at the thought of paying both fees let alone the one to receive the stupid order in the first place. FTD explained that although we do pay to reject normal orders from florists we DO NOT pay to reject an order from FTD.COM.
So I kept track of how many I rejected from FTD.COM and watched my statement like a good little girl and we DO NOT pay for the FTD.COM rejections just like they said.
Test it for yourselves, don't take my word for it.