You can't. Paypal Credit Account will NOT ever use your Paypal Credit Account for backup funding for your Paypal Debit Master Card. . There are two kinds of Paypal accounts for the average person. A regular Paypal account, and a Paypal Credit Account (formerly "Bill Me Later.") The regular Paypal account can issue you a Paypal Debit Master Card, which first uses your Paypal balance and then your backup funds, which can ONLY be one of your credit cards or your checking account. So, sadly, Paypal will NEVER use your Paypal Credit Account to fund your Paypal Debit Card. Your Paypal Debit Card can be used everwhere Master Card is accepted, but I find no point in having it since it just deducts everything from my checking account the same as my checking ATM card does. Now the Paypal Credit Account (formerly "Bill Me Later."), CAN be used for something, which is to charge your online purchases to your lovely Credit Account available balance.and that's about it. You can order something online and use Paypal Credit as your source of funds, BEING SURE YOU DO THIS RIGHT WHEN YOU GET TO THE PAYPAL SITE TO COMPLETE YOUR PURCHASE, and then it will come out of your lovely $2000.. I somehow goofed this up the first one or two times I tried it, until I found out I should always check out by first clicking on REGULAR Paypal to pay, and then logging in as though I am paying with Regular Paypal (be brave), THEN don't miss the choice to "change payment method" and click on the choice to Pay with Paypal Credit instead. I somehow goofed up the first one or two times I tried to check out and it accidentally got charged to my checking account I don't remember what I did -- but I was soooo mad. But I've since learned to use the method above, and often use the credit account for online purchases. Also, If the purchase amounts to over $100, Paypal will even automatically put it on "6-months no payment, and no interest if paid off completely within 6 months," I like this feature. To go with my Paypal Credit Account, I did get a Paypal Credit Card which is a very plain-looking credit card that only has four numbers printed on it for your account number. It is practically no good around here (in Rhode Island) since the only store I know that accepts it is Home Depot, and possibly Lowes. No other store I know of. So purchases from only these stores can be charged to my Paypal Credit Account. So actually, both my Paypal Credit Card and my Paypal Debit card sit in my billfold with practically no place to go. However, it is nice having the Paypal Credit Account when checking out online. Good luck! Try not to overspend! Signed, Big Spender
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