Apple pay
How do I set up Apple Pay on my iPhone 6 pls
iPhone 6, iOS 12
Question marked as
The first two links are for setting up Apple Pay and Apple Cash since I dont know which one you are asking about and the last link shows where Apple Pay is available. You must be at least 18 and in the USA to use Apple Cash.
Set up Apple Pay - Apple Support
Set up Apple Cash to send and receive money in Messages - Apple Support