Here are the details of this program. Paypal owns this service so if you apply they will give you the credit and will bill you for the amount.
Here is the frequently asked questions about it.
Bill Me Later is a credit line that’s built-in to your PayPal account. You can use Bill Me Later during PayPal checkout on eBay – and almost everywhere PayPal is accepted. Bill Me Later lets you pay for your purchases in 2 simple steps – just enter your birth date and the last 4 digits of your Social Security number and accept the terms. Approval takes only seconds. Set Bill Me Later as your preferred payment method and you’ll speed through PayPal checkout even faster. Bill Me Later is subject to credit approval and offered by Comenity Capital Bank.
How does Bill Me Later work with PayPal?
The next time you check out with PayPal, select Bill Me Later as your payment method. A window will appear on your screen asking for your birth date and the last 4 digits of your Social Security number. Once you accept the terms, approval takes just seconds; Bill Me Later will then be added to your PayPal account automatically. (Have an existing Bill Me Later account? It’ll be added to your PayPal account as soon as you complete your purchase).
How do I pay my Bill Me Later balance?
Simply log in to PayPal.com. Your Account Overview summary will show your current Bill Me Later balance. Pay your Bill Me Later balance from either your PayPal balance or your bank account. You can choose to pay in full now or over time (interest charges may apply).
There is more information on the service if you go here:https://www.paypal.com/webapps/mpp/bill ... ctoverview