The payment system is so critical to businesses that it should be forbidden to use AI for support issues. Besides payment systems are so niche/special, that there shouldn't be any "unnecessary" questions by customers (same kind criticality of function/communication as with accountant). Hope you get answer.
■ True fan of HN since ~2010
■ Interested in programming, business, design/architect/engineering, philosophy, music, gym, cooking... anything of beauty, utility, and inspiration/relax!