I put it in my united travel bank. Granted its not really something that is covered so if you don't get the credit you can't call up amex and complain, but it does work to trigger the credit in my experience.

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Starting Score:
EQ: 714, TU 684Current Score: EQ: 725 7/30/13, TU 684 6/2013, Exp 828 5/2018, Last App 8/5/17Goal Score: 800 (Achieved!) In garden until Sepetember 2019