Is it possible to download a business’s GST registration certificate without logging into the GST portal? I’ve lost access to the login credentials but still need the GST certificate urgently. Are there legitimate ways to retrieve it (for example via GSTIN + OTP, through a GST practitioner/GSP, receiving it from the jurisdictional officer, or alternatives)? What are the official, secure methods and any documentation required — and what should I avoid to stay compliant and protect data?