Credit cards, yes, you get consumer protection and the might of Visa/Mastercard.
Debit cards, which function online exactly the same as credit cards, except they use your own money, not Visa/Mastercards, you dont get as much help. Your money is already gone. You do have recourse through your bank to investigate non-provision of goods, but it's harder than a genuine credit card.
Course you can trust a pilot! That's why we're listed as being able to witness signatures for Commonwealth documents