Prefered Credit Card

[GTX]

I have 2 credit cards atached to my paypal account, mine abd my wife's, is there a way

to indicate the prefered credit card to be used for purchases?

For example, I recently made a purchase and do not remember being asked which

of my 2 credit cards should be used for the purchase, well the purchase showed

up on my wifes credit card which caused her some confusion,