For Seniors: How to Make Your eBay Payment Immediately
Just type your password and click the Log In button.
The next page is your last chance to confirm everything, so take a special look at the Payment Method box. If you have money in your PayPal account from a previous payment deposited in your account), PayPal will use that money to make the payment. If there’s not enough in your account (or no cash at all in the account), PayPal will take payment direct from your bank account or from your credit card.
You can change the default (of bank withdrawal) by clicking the More Funding Options link.
If you don’t click here to make a change, the money will be withdrawn from your bank account for payment when you click Confirm Payment.