Channel manager: calculate VAT with booking.com

Hi team,

When receiving a reservation via booking.com, there is no VAT to be entered in the sending of the information from booking.com.
So that the invoices and accounts of Solidres users are correct, Solidres would have to automatically calculate the VAT entered by the user; the invoices would not be false as well!
I think this is an emergency, right?
Best regards

I have to redo the reservations in the database manually! I enter the VAT and the Total HT manually directly in the database! This is not normal!