[Kikibosum]

If the buyer and seller do not come to an agreement (which both of you won't), that's when the Dispute turns Into a Claim and PayPal then takes over.

Is this done automatically? Or do I have to take some action or just wait for the other party to respond and then not respond?

You do It through the Resolution Centre by clicking "View" (on your dispute), and then clicking "Escalate this dispute to a PayPal claim".

Okay. It's been almost 1 month since the dispute was launched and it has just been closed. So I had sent the request and sent back information with screenshots, etc... to make them understand the problem. The file was closed this afternoon with only one reason: The file was closed in favor of the seller because the object was neither damaged, nor different, nor had any missing parts as you had indicated. So they blame me for having chosen the wrong situation when it was opened by an agent after conversation with him? This story is a complete disgrace...