Yes
Businesses (and consumers) can choose who to do business with and what information they ask for and disclose and when they do that.
If you’re uncomfortable with how they do business, don’t deal with them. If they don’t like how you do business, they are free not to deal with you.
This is called discrimination. However, it is not unlawful because only discrimination against a person due to membership of a protected classes is unlawful. The classThis person “won’t answer my questions” is not discrimination based on a protected class (unless they are a monk who has taken a vow of silence).