Hi Kathy
We're encouraging people to use cash or cheques wherever possible. The problem with PayPal is that it levies charges on the recipient of money. So the fund won't get all of what you donate, whereas if you send a cheque then every penny goes into the fund.
So if you're in a country where you can send cash or a cheque in your collector's currency, please do that rather than using PayPal.
Wendy