I built an e-commerce app. But I've just implemented Stripe Payment without implementing Apple Pay.
Before I put it in production, my question is:
Is it mandatory to have an apple pay payment method on an iOS App?
Is there any chance that I will be refused from the App Store?
As far as I can understand no you don't need Apple Pay to be on the App Store. Though you do need a Mac go to https://developer.apple.com/app-store/review/guidelines for the full guidelines on review.