United℠ Explorer Card: Earn 1 PQP for every $20 in credit card spending, up to 1,000 PQPs per year. United Quest℠ Card: Earn 1 PQP for every $20 in credit card spending, up to 9,000 PQPs per year. United Club℠ Infinite Card: Earn 1 PQPs for every $15 in credit card...