Ebay Seller Of A Suspected Fake Asks Me To Withdraw My Negative Feedback - Thoughts?

I've learned a lot over the last 6 weeks since returning to coin collecting and this forum was very helpful in confirming to me that I had bought a very suspect Bar Kokhba coin a few weeks back.

I felt the moment I handled it that it wasn't right. Experts on this forum helped to confirm that impression.

So I gave the guy (who is on a fakes list since pointed out to me by Victor on this forum) a one star review and commented "Doubts about its authenticity" but added that my money had been refunded straight away. That's fair. It wasn't an outright accusation and I credited him for authorising an immediate refund.

He's now asked me to withdraw the review saying he bought it himself in good faith and my review will harm his business.

Since the refund I've had to chase him twice to get a return address and he finally replied saying he didn't want it back and I should throw it away.

That doesn't stack up with his claim now that he got duped by the person that sold it to him because, if he had been, he'd want it back to chase the seller.

So I then dug into this a bit deeper. I kept a copy of the original return ebay return authorisation. It showed his registered ebay address, the one he has refused to give me. It's a British name and a London postal address.

The address doesn't exist. I've checked google earth streetview and google maps and there is no house of that number on that street. It appears to be one of a block of houses which were torn down to widen a road.

Furthermore, the address of the package sent to me with the coin is most clearly written in European rather than British handwriting (the style of the letters and especially the 7s and 1s) - not by a man with an English name.

According to the fake sellers list he is associated with another fake seller noted in Oct 2020 who has since changed his ID to a different innocuous sounding name (b-antiques)

I'm going to refuse to change my review. He's got over 1300 positive ones on the last 12 months and mine is the only negative. I don't want to pick a fight. I'd add that he's got my address and if I've threatened his business (my guess is that he is making a tidy sum off dubious coins) as he claims my review has, I don't want this to get unpleasant.
Does anyone have any thoughts on this?