B1/B2 from Thailand instead of India

I created my ustraveldocs account sometime back and filled my profile without a DS 160.
I filled out my DS 160 form from Thailand as I am visiting Thailand next month and wish to get my B1/B2 visa there.
But when I go the Apply for a U.S. Visa | Home - Thailand (English), it says to use my existing account.
Upon login to my existing ustraveldocs account, I do not see any option to choose Thailand as interview option. It still shows my Kolkata (India) as the default visa interview location from my profile data.

What should I do? Should I create a new account Apply for a U.S. Visa | Home - Thailand (English) with a different email?

I would direct this question to VFS.