I am not sure which one will be used in your case. But if you spend more than $4 first, the $7 rewards will be used. So to be safe, regardless of expiration dates, always use the largest rewards first.
【在 G**********2 的大作中提到】 : I am not sure which one will be used in your case. But if you spend more : than $4 first, the $7 rewards will be used. So to be safe, regardless of : expiration dates, always use the largest rewards first.