Originally Posted by martian
So what about using mileage earning debit cards to buy money orders at big chain stores e.g. walmart. WOuld like be legal? would it work?
Most mileage earning debit cards only earn miles when used in "credit" (i.e., swipe and sign) mode (as opposed to "debit" or PIN-based mode). Most stores will only accept PIN-based transactions for money orders.