Found A Facebook $50 Ads credit trick! Can it be used...?

Guys, found a trick for FB $50 ads credit. Can it be used as a stand alone without using any paypal account or credit card for a payment.

I mean to ask can I use it on new accounts with no history of FB ads in them for which I have paid?

You'll most likely be required to add a credit card. However, you can set your spending limit to $50 so you don't have to worry about the card ever getting charged. When the coupon runs out, the ads will just stop.

As far as I know, and people have stated above, I believe you need to have a payment method along with it