A side question here.
The reason I traveled back to my home country was to get the new passport. I entered the border with the old, invalid passport. As such, the border agent didn't stamp (but didn't ask any questions because many citizens were traveling back for that reason). The agent just confirm the reason I entered the country was to get the new passport, and just looked at my old passport without stamping. Now, how on god's green earth do I prove that I traveled to my home country on the date I claimed I traveled? I have the ticket as well as the credit card statement with the purchase (no boarding passes). Any thoughts?