[Defeat]

I contacted the operator again, he opened a complaint for me from a to z. he said to wait a week to get feedback

For the most part, social engineering requires perseverance and a lot of patience, and this Is a prime example of that.

The upside Is, your claim Is actively moving In a positive direction.
We shall await their reply.

Mothered, the seller asked me to cancel the dispute and then will refund me. But if I close the dispute and don't refund myself I couldn't get a refund anymore. What do I do?

Well you do have it in writing that he'll do it. A quick search shows that it doesn't matter if the seller refunds during or after as far as the metrics are concerned so he doesn't have a good reason to make that request of you. Tell him no.