Hi! Right now, while the promotion is running, the PC version of the game costs $5 and the mobile version costs 2.5%. In total you bought 4$ and the mobile version is available to you.
As far as I know, on itch you get access to the product if you pay an amount equal to or more than the listed price. Now you want to get a game that costs 5$. You have to pay 5$ total and essentially you should get access to the download.
