How long does a buyer have?
180 days they can file a case, not with eBay, but their credit card company. NOTHING is ever sold and done with here, until 180 days have passed on the sale.
If this has happened to you more than once, at what point do you think you are going to start buying insurance so you can file a claim for undelivered packages from the carrier?
As someone else pointed out, you need to understand the terms you are selling under. Nothing wrong with asking questions, but you seem to have some false sense of you understanding the rules.
Selling and buying here, is a contract with the platform. A wise person would want to understand all those terms and rules, before engaging in something and finding themselves in a bad position, like you seem to have found yourself in. There is nothing 30 days at all about selling here, it's SIX full months. Because if eBay won't just give in to the buyer, they file a chargeback and get it anyway. Let THAT sink in real good.
There is no such thing as fast money here. There is no such thing as easy money here. If you stopped selling today, and canceled all your listings, you are STILL on the hook for 6 more months.
