Probable PayPal Claim

I posted this question on someone else’s ongoing thread where PayPal was in question. So I’m starting my own thread here in hopes of getting someone in the know to answer.

Fortunately I have not had a PayPal problem up until maybe now. I just purchased a DAC on USAM . Paid using PayPal (not f&f) so I’d have protection in case I needed it. Well it looks like I may. DAC arrived and all functions do not work, as advertised. It was properly packed same as it came from the factory and box was perfect so very unlikely it could be blamed as shipping damage. It was listed 10/10 and the seller through presale emails reconfirmed everything worked properly. I’ve demanded he take the unit back and give me a full refund. It’s been several days and now the seller is saying he’s waiting to get authorization to send it back to the manufacturer for warranty repairs, which is not my problem, before he refunds my money. I’ve run out of patience and considering filing a PayPal claim. If I file a claim, and can substantiate it, which I can, does anyone know if PayPal will refund my money or at least freeze the funds until we reach a resolution?