I think you might need to go back to where they stamped used on it and try to get it corrected, I just looked at my Visa which is same as yours and only stamp on it is the official embassy red stamp
word of advice and I showed around no Airline will let you book the flight yourself, they want a so-called accredited pet transporter which is bullshit to put it bluntly ok , im just saying it how it is . Good luck make
I used AeroPets but I won't recommend them couldn't get updated about my dog which was on the same flight as me ,got to BKK 4.20 afternoon didn't get my dog till 10 pm and had to fork out another 7000 baht after paying almost 4 k AUD just for them to make the booking I did all the vaccinations and that paperwork myself plus supply the airline approved crate, never again to put it simply