Hello, Thank you for trying out the game, and i am glad to hear that you are enjoying your time playing the game.
You found the game through CrazyGames!!, now i am curious, how did you find the game here? :D
To be clear, you are not an idiot!!.
it seems that it is not clear that you can buy RAMs through the store, as this actually happened to other players too.
I will add more pop up tutorials to guide players to the store, so that future players wont experience this issue, and maybe quit the game!.
If you have other questions, feedback, cool idea, or found bugs, please let me know, i would love to hear them all.