Donations/Payments made on Zeffy

What is the contribution made towards Zeffy? Why was I charged extra?

How can I make a payment on Zeffy?

There's a charge on my bank statement from Zeffy that I don't recognize.

Why am I being asked if I want to claim Gift Aid?

Obtain a refund for a payment made through Zeffy

Can e-tickets and membership cards be added to wallet?