Resealed pack seller (Mercari)

Unfortunately, I found myself in receipt of what I didn’t know was a resealed pack (1st Edition German Booster) when I first received it through Mercari. I went to open it today, and the thing opened on its own as the glue peeled away. I can see a bunch of English jungle Commons in the pack. imgur.com/a/5aUD5jI

I contacted the seller on Mercari, KB GOODS, and he refused to hear anything or look at evidence, and then he blocked me completely.

Caveat emptor with this guy… Ugh.

Welp I heard Mercari has a nice refund policy if items are not as expected. Best of luck, and unfortunate for your demised ‘sealed’ pack.