I'm not usually the cautious type when it comes to these things but wanted some thoughts for this one. Amex business card in my wife's name, I want to pay off part of the bill using my Chase business account (in my name ) my question is A) is this a bad idea? and B) if it's not, should I send a payment through Chase bill pay (via mail since for some 'reason' they don't have Amex as payee') or should I add the account on amex's website and have them pull the funds?