You should have not done anything with the eggs until you showed them to the post master. If you have already unwrapped them then the insurance will probably be void. To me that would make you responsible for receiving the damaged package instead of taking pictures & then surrendering it to the post office. I know that statement is going to get me a lot of comments but it is only fare to the seller also who did put insurance on them. This might be her first package sold or her 100th I don't know but give her a week to work with you & if it doesn't get any better at that time then file the clam. If I were the seller then I would try to make it right for you. I had a package lost in shipment with Fedex & I replaced the package & sent him another item as a gift for the time he had to wait on the item. It was not my fault but I had insured it & even though it took some time to get my money back it was more like selling two of them & only paying 1 eBay & PayPal fee.
Just give it some time before you post Negative feedback or file a clam.
Just give it some time before you post Negative feedback or file a clam.