Can't transfer bells?

[Geowlett]

Im trying to transfer my 251 TBT to a user for art but it says I don't have enough?

Edit; it worked

 

[Trent the Paladin]

I know you got to send them eventually, but what happened was most likely that the system rounded up the number of bells you had. So it showed 251 bells, when really you had like 250.6 bells.