Hotel gst invoice for declare rate vs ota price

Happines Hero (Happiness Hero) (28 Points)

15 August 2019  

Scenario 1. Our declare rate is ₹2200(GST included) for our website and OTA. But OTA sells it for around ₹1386. After checkout Guest ask for Invoice. OTA never tells Hotel how much they charge from guest. So how to make proper invoice? 

Scenario 2. Hotel is not registered with GST as per total sales value, But OTA(Booking.com) doesn't tell guest about the exact amount of GST, on behalf of Booking.com hotel has to collect the GST, but then Customer ask for invoice with proper GST, so how we do that when GST is collected and paid by OTA. What is the proper way to do it.

Sorry for long questions