What reason would they have to ban you? 

 When are you going to shame Matrix? 

 I hope Beeper, a service that I use, also allows for Matrix federated chat. Their Beeper Cloud service is a matrix server.  

 Beeper is just a matrix client with bridged rooms 

 It is, but afaik I can’t talk to other people on the Matrix network.  

 Telegram banned you because they probably thought you were a threat to Russian/FSB interests. Congrats bro I’m jelly. Gonna have to take my china ban up to the next level.