Can someone tell me how openbuck works, I went to the store and didn't find any of the gift card from list. But the option where it says pay with openbuck I am confused, do I buy subway gift card, cvs or Burger King?

OpenBucks is a system of using Giftcards from certain stores/eateries such as Subway, CVS Pharmacy, and select others to spend as currency for games. Its a weird system, but it can be used easily to get in-game currency in games such as Onigiri, and League of Legends (I believe).

Go to subway.

Buy a subway giftcard.

Proceed to charge OC as usual.

Use the OpenBucks option.

Select amount/currency, hit next.

Hit "Subway card" on the openbucks site.

Fap.

???

Profit.

^ Thats pretty much it

Openbuck no longer works. Trust me, just pay directly with credit card.