Hi, I want to use Vanilla Reload Cards in order to load them on my Bluebird Prepaid Card and then pay rent. The intent is to meet the Minimum Spend requirements on some travel credit cards. I can't otherwise pay my rent with credit cards directly. However, I don't want to piss-off the people at either American Express Bluebird or the travel credit cards (Chase, for example) and have either account shut down. But I don't know enough about their business model to know if either of them, or any of them, or both of them would be upset if I used my cards in such a manner. So, does American Express care if I only used the Bluebird in such a way? Or should I mix in some other regular spending? Do the credit card companies (Chase, Citi, etc) care if they see large transactions from me for $503.95 for the purchase of Vanilla Reload cards? Should I try to hide those? Or do they not care? Thank you.