I did make a claim to PayPal. I am really surprised that when I escalated it to a claim, they gave the seller 10 days to respond and then they told me after the seller responded that it will take them 30 days to “resolve” the claim!!
So I am still waiting….
You can call and ask PayPal how to submit a copy of the original receipt with the weight on it. Also have someone at your post office weigh the one solid (with packaging) that you did receive and have them print up some official document with that information to submit to PayPal, too. I know it's a pain to go to the post office! But hopefully it would speed up PayPal to make a decision in your favor. 😉