How do I sell things in a premium tab??

I set my premium tab to public and I put my items up set the price and quantity etc but there is no check mark button to confirm the sale and it never gets listed.

I'm on a series x I have no idea what I'm doing wrong it's been this way since day one I can't sell anything but I can sure buy stuff from people hahaha......... Going to do a chargeback soon because why the hell did I pay for tabs if I can't sell things.