Tribble Borg Bug

Hello, i discover a bug about Borg Tribble, i dont know if everyone else have encounter yet but if you already buy the tribble and want to claim with another character from account you cant, beacause say how cannot compleete the transaction because the price have changed and need to check the new price. But you cant do this either, only option you have is buy zen or claim . Then you cant claim the tribble in the end.
Escuse my bad english and Best Regards.