I opened a Delta Amex card in June this year and already got 60K points for 2K spend. Later that month, I received another Delta Amex offer by mail: this time, 70K miles for 2K spend. I tried to apply for the second card while the first card was still open, and the application was cancelled (they didn't pull credit). Called reconsideration line and they said it was because I already had another card. They also said that if i apply for another card I may not be eligible for bonus. So I closed the first Delta card immediately and will try to apply for a second card again using the same offer for 70K. Has anybody tried to do the same with Delta cards? There is no lifetime language in either offer btw. I hope that if i am not eligible for a bonus, they will either cancel my application again or give me a warning message that i will not receive the miles.