Payment processing, invoicing, financial transactions, receipts and donations are processed through PayPal, Zettle/PayPal point of sale or Stripe.
You should only provide your personal information to either of these payment processors after reviewing their own Privacy Policies/statements
PayPal privacy policy available at: https://www.paypal.com/uk/webapps/mpp/ua/privacy-full
Zettle/PayPal point of sale privacy policy available at: https://www.zettle.com/gb/legal/privacy-policy
Stripe privacy policy available at: https://stripe.com/gb/privacy
I share information with these processors only to the extent necessary for the purposes of processing financial transactions, I do not see or store any of your financial data such as bank/debit/credit card details that you share with either processor.