u/NeitherPossessed

I recently got into WMMT6RR and got a Konami card so I can play it. It works just like a BANAPASSPORT, but for some reason when I try to link it to the WANGAN NAVIGATOR app with the code on the back, it gives this error. Anyone able to help?

I already have multiple cars registered, one with 800km on it

For info, I'm playing in The Netherlands