Contact
Mail hello@billondesk.com. That is the only inbox.
Say which tool you used and what went wrong. Phone print cut off, PDF blank, amount in words looking odd — write it in plain English.
Do not send GST passwords, OTP, or a scan of someone else PAN. We do not file returns. We do not store your bill. Drafts live in your browser until you download or print.
If you want a real GST invoice on the government system, this is not that desk. Ask your CA. File on the official portal.