Download the affirm app (that's the easiest route)
put all of your info in & see what your spending power is
Check your spending power to make sure it is high enough and you can get a virtual card
Click deals (bottom of screen ) go to type bar & type in "virtual"
you'll see "pay with a one time use virtual card" click on that
put the amount for your purchase
it'll populate payment plans 9. then you'll see your card number, exp date etc.
Take that card to the checkout page and use on the link as if you're paying in full