In reply to Donotello:
> I think only PayPal offers buyer protection, at a price.
Just for clarity: PayPal buyer protection doesn't cost the buyer anything. (The seller might, of course, choose to ask a higher price up front in order to cover their PayPal costs. Or they might decide that the additional confidence that Paypal buyer protection offers to their customers is worth it. I've not yet found any non-eBay retailer which charges more for PayPal cf credit/debit card.)
Section 75 protection only applies to credit card transactions (not debit card) where the total cost of the single item is over £100 - although you don't have to pay the whole amount, or even £100.01 of it, using the credit card. More details here:
https://www.moneysavingexpert.com/shopping/section75-protect-your-purchases...
Note especially the bit about Section 75 cover not applying if the payment is handled by a third-party processor. The article states that the Financial Ombudsman Service is of the opinion that this means that transactions via Google Pay (and therefore, presumably, Apple Pay) don't get the protection.