Wrong item received. Cannot reach PayPal help

[dliban]

I ordered a high-end face mask with air vents, and five carbon filters. After six weeks the item had not arrived so I filed a complaint in the PayPal resolution center.  Upon filing the complaint, the merchant sent out an item, but it was not the item I ordered.  PayPal saw the tracking number and that an item was delivered, but it was the wrong item.  But from PayPal's point of view, it was delivered so they closed the case and now I cannot add to this complaint because upon closing the case, it cannot be further disputed. Escalate the dispute is not an option on the site despite saying it is. The thing is, I have evidence, but I cannot actually show that evidence to anyone because the case is closed, PayPal is not taking calls or answering messages and the merchant is completely unresponsive.   At a loss.

Anyone know how I can proceed with this problem?  Below is two pictures. One is what I ordered (Black mask) the other is what I received.
Thank you,

David
What I orderedwhat I received

[kernowlass]

@dliban 

You are only allowed 1 dispute per transaction so the only way you can get a second dispute opened is to contact Paypal (when and if you can) and see if they will open a second dispute for you.
They may decline citing policies but if you say you made a mistake OR needed to change dispute type then they might open a second dispute for you.

If not then if you funded your paypal payment via a credit card then consider contacting your card issuer and see if they will help you with a chargeback?