If I were you, I would have hit the show to deal with your 150$ problem in person.

They gave you the option to handle it face to face, or mail it back for an exchange. It’s not like they didn’t try and help.

You are just being demanding and creating a hassle by trying to hit them up for a return envelope and free postage to mail it back.

If you want to deal with it through mail, send it registered and document the whole packing and mailing process on camera before you ship it. You can get insurance for a few dollars extra to cover the cost of the ring, should something go wrong in the mail. Just keep your receipt from Twiztid Shop that shows the value of the item.

Or you could hit up Majik Ninja/George on social media to ask for help.

Might cost you about 20 bucks in total to ship it back insured, at least your problem will be dealt with, and I bet they hook you up with extra flavor when they mail back your replacement.

I’ve had 2 damaged items from them in the past 3 years.  Call them twice a day until a human answers the phone.  I left a message one time and talked to one of their merch people the other time, and they corrected both orders, neither of which was their fault that it got damaged.  On a third occasion, I ordered something that was out of stock and they weren’t planning to restock, so they called me and offered me store credit which I accepted.  

You said you left a message, but I would keep calling them.  Voicemails tend to get buried pretty quickly if you are getting a significant amount of calls.  Worst case scenario, file a paypal claim.