I think that's a great idea, I'll send some. Apparently the message invites to find information on telegram channels, so should it contain a link to a channel?
"Due to extensive operator-level filtering in Russia, all messages with URLs will be subject to filtering. It is recommended that if you do not have a registered Sender ID and your messages contain URLs, then you must reach out to us to get the message content whitelisted to ensure better deliverability. "