Alternate methods of payment

You can always use your credit card to purchase Vanilla Visa or AMEX gift cards, if she agrees to it. Spends just like cash and you can still earn points. She doesn't have to worry about chargebacks or the processing company holding funds and there is no risk of the charge being questioned on your credit card statement by other eyes.  

You can also get a combo of gift cards and bury them in purchases say like at the Home Depot, grocery store etc or  depending on the vendor, an e-gift card. Just be sure both of you are in agreement on the amounts and on which card(s) beforehand.  

Hope this helps!  

xxoo Aeri