Develop a webapp in Telegram for issuing international virtual cards that can be used for payments abroad and added to Apple Pay and Google Pay, as well as for internal token exchange on the Ton network under the project name BON Banking.

Created a user-friendly interface for managing virtual cards and integrated a token exchange system that ensures transaction security and speed.

Established an effective solution that allows users to easily manage their financial resources and exchange tokens, contributing to the platform's growing popularity.