HELP please, im having this issue aswell, i can upload the listing via GS with collect in person but i have to pick a postage service otherwise i get the error message. i then go through eBay into the advert and select “revise the listing” and select collect in person and it gives me the option to remove the postage service garagesale is forcing me to select, and just leave collect in person on the listing. but if i try it via garagesale i get this message attached below.im using gs ver 7.0.20 