i used there domain registeration code two days back for registration and that code is still there in the flypaper now when i enter the code it says no valid code found wonna ask is it once u submit the code and register its gone or it had a time period till then i can reged a name at that price as when i check for domains its billing 9.XX some thing http://theflypaper.com/
They could set it up however they want. The promo code could expire after a certain # of uses or on a preset time schedule.