Adding a subject on the test day

There was similar question in FAQ and answer was “you probably will need to talk to the proctor”. Did anyone actually experienced it? Can proctor deny adding a subject or something? I’m taking SAT at international location and it is possible that proctor won’t know about different options…

Anyone? What I primarily mean is whether I have to talk to proctor and if it is possible that he will refuse to add a subject

I don’t see the reason the proctor will refuse your request.
You should worry more about whether you want to take another test.

Per the College Board:

https://collegereadiness.collegeboard.org/sat-subject-tests/taking-the-test/test-day#changing-tests

I see no reason why you would need to involve the proctor. All the tests come in one booklet, so when the time comes, you simply open your book to the subject and bubble in the test code. Having said that, I can’t say that every proctor understands the rules.

My son added another test one day. I received a bill and I think a notice that none of the scores would be released until I paid for the extra test, which seemed reasonable to me.

Hi well I wanted to know. I gave extra subject tests and then I called CB to inform them. They asked me to wait 10 days it’s 16 days today. I just want to know if I’ll be able to get the result on time? And if not how long it can take since my deadline is in 6 days

The person on the phone did assure I’ll get it on time but the results are out already