Can't change initial country

I thought at the beginning that I need to add my account using the address where the card should be sent so I put my Austrian address, but my billing address should actually be my Romanian address (as it is in my ID) as I want to link it to Paypal. How can I change it?

I think you can change this in More --> Profile --> Personnal Details.

If not you’ll have to contact the support though the inapp chat.