although these are not my items, they are made by another company why should I go to GS1 and pay for GTINs?is there any workaround to avoid creating GTINs for used items?

Hello,I sell used Pandora Charms on Shopify and I don't have GTINs for them and my google merchant center account got suspended because my items do not have GTINs, I searched online but I could not find anything with the same situation, can someone t...