I keyed in 7.5K on an international credit card just now on the register. shows as completed, but amazon is holding the money and not yet making it available - because it was keyed in. (2.75% fee)
The lady i called told me swiped transactions are available immediately - keyed in takes up to 14 days.
She also said besides some random calls about setting up an account i was the first account with a transaction she has seen, since it went live this morning.