There is a Telegram payments bot, but it has yet to integrate TON:

There are some community example projects of TON bots that accept TON payments:
https://github.com/Gusarich/ton-bot-example
https://github.com/LevZed/ton-payments-in-telegram-bot

But if you want something better, you'll have to develop one yourself. You can try starting here:
https://ton.org/docs/develop/dapps/asset-processing/