Look at things from his point of view. Four days after he paid for the item you had effectively not shipped it. I know you did ship and made a mistake, but four days later the canteen was in your possession still. Considering this I'd say rturbo was within his rights to request an immediate refund, even though many of us would have been more patient.
Why should he have to wait for you to physically see the package? How are the shipping charges his problem? You still had his money and his property so he wanted to back out of the deal. No reason to withhold a man's money at that point, however unreasonable they might be.
The PayPal app is convenient but it does have limitations. The thing is, if you're on a smartphone you can always log on to the full PayPal site through your web browser and take care of business immediately.
Why should he have to wait for you to physically see the package? How are the shipping charges his problem? You still had his money and his property so he wanted to back out of the deal. No reason to withhold a man's money at that point, however unreasonable they might be.
The PayPal app is convenient but it does have limitations. The thing is, if you're on a smartphone you can always log on to the full PayPal site through your web browser and take care of business immediately.