Some users are reporting an unfortunate error when attempting to join Refereum's telegram chat. We know how frustrating this can be, and are committed to working with Telegram to achieve resolution on this soon. In the meantime, though, there is a workaround!
Using your web-browser of choice, navigate to https://web.telegram.org, complete the sign-up or sign-in process, and you should now be able to join t.me/refereum!
Some users, running MacOS (on a desktop or laptop machine, NOT an iOS device) have had luck with downloading a version of the Telegram app from somewhere OTHER than the app store - for instance, from https://macos.telegram.org and installing and using that version. (Be sure to not select the Mac App Store version link before "Download for macOS", though!)
Once the error message situation is resolved, you should be able to use the Telegram messenger again.
We're sorry for the inconvenience. Rest assured that we're working hard to resolve this every day.