My issues ws sorted by the Help team.   Thank you!

My Products dissapeared and are not saved at all. I have lost  hours of work and there appears to be no reason for it. It all started with an Error Message The most recent attempt to list this product failed: Ping is not a valid payment method. TradeMeListing.ExternalListingID has not been supplied I hit the x button on my remaining listings as advised. yellow arrow remains . When I try to activate the listings they dissapear!