Need help, have no ways to buy content for KI at the moment

I dont have credit card, I buy games and DLC through paypal only. Back in april, the way I bought Supreme Edition was by buying Windows Store gift card from G2A and using it.

I decided to buy Kilgore and Shadow Jago the same way, but there are no USD gift cards on G2A at the moment, I am checking for two weeks but gift cards are still unavailable. I am worried that G2A gave up on Windows Store gift cards and wont replenish their stock.

Should I be more patient or am I screwed?