Hello,
However, I can check the purchases you did with your username (Aventador_Maximus) for QGO and I can see that your last purchase was 14 days ago.
So, at the moment, I can't see the 3 purchases.
I'm not in charge of the purchases process, refund, etc, so I can't help you on this side, it's on Itch side. You pay them and weeks after they pay me.
You must contact Itch.io support and details your situation for more help.
You could show them your bank lines mentioning the purchases or some receipt if needed.