I know I am still in the minority on this, but I have to have sent well over $1 million in money orders to pay credit card bills in the last many years, particularly when MSing was in its heyday and the UFB debit card worked for this. I opened a lot of $5,000 CDs (not available as a technique any more) with credit cards and paid them with money orders from the UFB debit card. One money order per envelope. Got a call from Chase saying to stop, but no closure (but this was after God knows how many money orders). So don't freak out over mailing a few money orders. I still do it now with AMEX Blue Cash and Discover IT, with no problems. I just prefer to keep money order deposits out of my bank accounts.