Congratulations! I flew out today and just a warning, it took almost 2,5 hours to go through check-in, immigration and security. As Tet holiday starts Saturday I imagine it will take even longer then. Be prepared for endless queues and be at the airport many many hours before your flight!!
I don’t know where your clients’ businesses are registered, but in a lot of countries the chamber of commerce records are public and can be accessed by anyone. You could find them on there and download their registration
Anonymous participant you can give them statements from both accounts and add a letter explaining you have two accounts and how the total amount adds up to the requirement
yes everything converted to PDF, then merged, then compressed. 1 file for location, 1 for financials and 1 for the Muay Thai. All files were well below 1MB. I used ‘I ♥️ PDF’ for this.