Install Telegram X from Play Store on your device on which the sim is used for activation of your @Royse777 telegram account. Don't worry TelegramX is not an unofficial app nor a modded version, it's just one of Telegram's official clients and also developed by Telegram-LLC.
A little off-topic, but why does Telegram have so many official clients, not just for web but apparently for mobile platforms too?
On web, we've got Telegram K, Z and I think W.
And Android has the original Telegram app and the X version, I think. But on iOS things are a bit more sane with only one official client on the App Store.
They all seem almost totally similar to each other except for a few UI changes in each one.