Game's price isn't same in different regions.. for example in last sale GTA V 's price (USA region) was 15$ while if you change to Russia region it would cost you waaaaay less than that (Argentina and Russia region cost less almost in all games) like for 5$, also since Steam wont support Toman/Rials instead of buying gift card that cost YOU way more than what it is (you pay for 4$, you get 2$?, Iran thing -,-) you can ask some trustworthy Steam seller to gift you the game!
Also you can check SteamDB for game's price in different regions. Here's GTA V >>https://steamdb.info/app/271590/
Btw for that "address" you can try /Republic_Game & /Sgifts on Telegram!
Better leave this thread, TiMoN readinggg rn, we all gonna get banned..