PayPal unit, charge nonprofits a 2.2% fee plus 30 cents per transaction solely to process donations, while others like FirstGiving charge 7.5%, including credit-card transaction fees, to manage online fund-raising campaigns.

WSJ: Fee Bite for Web Donations

And they are not eager to pay the fee, worth 3% of the claim, that Argentine courts charge to process such awards, especially if there is a risk that they will be overturned.

ECONOMIST: Foreign-investment disputes