This information describes a method for obtaining items from https://www.g2a.com/ for free by exploiting a vulnerability in the payment system. It suggests installing the Tampermonkey extension in Chrome browser and a script that changes the time zone in the browser when creating a new order on G2A. After going to the payment page, due to the time zone change, the order is marked as "Expired" on the Bitbay payment processor side, but not on the G2A side. If you pay with bitcoins, G2A processes and delivers the order, but Bitbay refunds the money due to the "Expired" status. For the method to work, the total value of the items in your shopping cart must be at least 0.003 BTC. This method only works with bitcoin payment, and some products on G2A may have the bitcoin payment option disabled.
Working in 2023
Link - https://mega.nz/file/kecH3QBT#IIIdLDm51PYU_vm2SstHdJoT9wXj5mheCgykFFviWN4
