Choose account for Google Play Store app while prevented to access the account switcher

Say, I have multiple Google accounts (A and B) on my Android 8 smartphone. I have already installed some apps from the Play Store in the past with account A, and I'd like to continue using this account. But now, somehow, when I open the Play Store app, it asks me to accept the terms of use with account B. If I decline, the app closes, so I can't switch accounts from within the app without accepting account B, which I'd like to avoid. Am I missing something?