Not sure but 3 weeks is a long time regardless of circumstances right?
i'd say so......but i will say this. i sent payment to another member for some items and two weeks later it's returned to my mailbox saying undeliverable or something to that effect. i put that envelope exactly as i received it into another envelope so they would see the postmark date and post office's remarks stating undeliverable showing the two week journey and stuck it back in the mailbox with the same exact address and he received it a week later.
sometimes **** does just happen