We wanted to create a bot. The name of the bot "DocBot" telegram received. But username no does not want to accept. He says that this username is already occupied. First username entered are meaningful, then a simple set of letters that ends in bot.
What could be the problem? Or is it a temporary error, or all valid names are busy(which is likely to 99,9999999 not possible unless you use some sort of "Quantum network"))