but it doesn’t respond for neither expired items nor for any other on draft or ready! Only the items that onsale status
Your profile verified ? or did you submit your phone bill.
Of course, I made an error on my description the API call is returning the items that only on onsale status I am changing the visibility status public or unlisted
So, i think you have to talk to the support about this problem via ticket.
You can see these URLs from monitoring the HTTP calls from the tabs on https://gameflip.com/listings
So, i think you need a help from the support just send to them a ticket.