In response to those commenting on handling donations to those raising money for NHS/COVID-19.
We have donated to charities using give.net. They have a 3% fee detailed
here. They do not charge the recipients and whatever anyone says there are costs involved in handling money. Yes 3% of £10 is small and £20,000,000 is bigger but so are the costs. Their illustration would show that their fee for a £10 gift with gift-aid gives the charity £12.12 instead of £12.50. There is no card fee.
From the linked page
"
*Just like the churches, charities and full-time Christian workers we support, we’re a not-for-profit too. It means you can use give.net in full confidence that we’re not profiting from your generosity. In the event that we do make a surplus, it is reinvested back into supporting our charitable activities."
Other donation handling mechanisms may differ.