Sadly, that golf ball is, in PP's eyes, your order. Thus case closed. You need to contact customer service via chat in message center and get to live agent, then explain what happened and have the dispute changed to "item substantially not as described". Take photos of the junk you received, along with the packaging showing tracking number, as prove.
If seller then ask for return of item, don't do it, even if PP reimburse you up to $30 for return shipping cost, there is no guarantee the package will get delivered (return address could be fake). And PP won't refund till seller confirms receipt of returned item. In that case you need to asks for exception because the item is worthless and that it's an obvious scam.
