Adam, you may risk Paypal thinking this is a partial payment which they don't cover if you say something about the amount. My feeling is that you are possibly being set up.
If this person was going to pay tuition in another day, wait, he should have the $ tomorrow unless he was fibbing. He can still send the balance. Paypal is not the only way to pay.
If he wants to play games, just wait for Paypal to work through it. Don't be pushed or bullied into doing something that might block your refund (like his multiple entreaties that you drop the claim).
If this person was going to pay tuition in another day, wait, he should have the $ tomorrow unless he was fibbing. He can still send the balance. Paypal is not the only way to pay.
If he wants to play games, just wait for Paypal to work through it. Don't be pushed or bullied into doing something that might block your refund (like his multiple entreaties that you drop the claim).