I've got a quick question for all of you experts out there! My sister was targeted for the 65k United MP Explorer card promo and I encouraged her to apply for it. She did, but upon submitting it there was an error with her internet browser or something and it said she'd need to resubmit her application because it didn't go through. After re-submitting it, she received notice that she had submitted a duplicate application and to wait to hear on the first one (or something like that from what she explained to me). Well, low and behold, she just received TWO cards in the mail from Chase with two different account numbers. Am I correct in assuming that Chase isn't going to allow her to get the bonus miles two times? (I tend to live by the motto that what seems to be too good to be true often is.) Any thoughts on what I should advise her to do?