According to sellar, they already refunded me on May 13th. But I did not receive any refund on my account till today.
You DID receive your refund today?
Or you have NOT received your refund yet?
If you have received your refund, the case is at an end. (BTW you know that gold-filled means about the same as gold-plated, right?)
You can try to open a Not As Described case with Paypal, since they may have a longer deadline. EBay only allows 45 days, while PP gives up to 180 days.
But you may be required to return the items to the seller which may be more expensive than this kind of dollar store costume jewellry is worth.
You had only 60 days to leave feedback and the more important Detailed Seller Ratings.
Instead, go to the credit card you really paid with. (PP is just a useful mediator)Phone the 1-800 number on the back of the card and ask about a chargeback.
Cards tend to have longer deadlines than eBay or PP. Some will not require that you return the item. Others only ask for the cheaper Proof of Shipping, rather than Proof of Delivery.