Please help- On February 20, 2022 I won an auction for headphones for $218 plus $10 for shipping. The seller received my payment but told me the item was already sold, and won't respond to messages OR refund my payment. Ebay says they will not do anything until March 3! Meanwhile, the seller has my money. What can I do?

The good news is, the seller will never see that money.Not much you can do until after the estimated delivery date.