All the Telegram crypto price tracker bots really suck, so I had a little play around with the bot API this evening and have managed to throw together something simple but useful (I think!)...
To use the bot either visit here or search for the user @CryptoPriceTrackerBot.
Then just type:
/[currency code] e.g. /xrp, /btc, /ltc
Thanks to KC for letting me use his face for the icon.