I’m not allowed to buy the aircraft, it seems!
Had the same problem. This is what solved it for me. (check SYF’s post Sept. 6)
https://www.avsim.com/forums/topic/580620-marketplace-payment-failure/?tab=comments#comment-4340057
I tried the suggestion in the linked thread above to run NOT as Adminstrator…
AND IT WORKED!!!
Bought and installed the Mooney with no problems. Nice airplane!!
I love it when a plan comes together…
i had to NOT login as with admin rights before the store would let me buy it.
i had to remove admin privileges from my current user, the store then worked and i set it back after.
I had tried the other methods first but that worked.
I started the sim from the xbox app and then I was able to buy the Mooney. It’s very good!!