I'm a little concerned about the president this sets though.
When a buyer pays me via PayPal I never actually open the payment e-mail I receive and read it. I just see the e-mail in my In Box, know that payment has been made, and begin preping the item for shipment. I would assume many sellers, if not most, do thee same.
But the above makes it sounds like the seller, by accepting the PayPal payment, binds himself to whatever conditions the buyer stipulates in the comment section. In effect, the payment becomes part of the transaction negotiations.
So is it incumbent on the seller to open and read those payment e-mail to make sure the buyer hasn't unilaterally changed the terms of the transaction?
Not commenting on this specific situation so much as asking in a general sense.
Leave the president out of this.