#1. I tested the minutes utilization. I thought, number of minutes bot is speaking that much must be counted. But surprisingly, it counts total duration till my user is connected. It means, even if user is reading replies from bot, the minutes counting is ON.

#2. Hiding the source is basic need. You said its not available, then how come your own bot don't show the source.

#3. Limiting number of minutes utilization should be present. Otherwise, one person connecting for 10minutes to bot and 300 minutes quota gone (highest tier).

#4. I have indian ascent, but somehow my bot's voice does not sound like me. Not sure, but your own bot on the site sounds perfect.