My Bantutalk account is not connecting

I could not verify my bandutalk account on the Telegram bot. I tried every way but it didn’t work. Please help.

From the Bantupay application, I typed my username on my profile and entered the bot again. This time it happened. Friends who can’t, can try.

у меня тоже не получаеться подключить имя пользователя bantutalk в телеграм bantupay