I am trying to delete my account and the bot wants to know my account registration date. Where do I find this information on my account?

To get the exact date:
1. Go to https://www.gog.com/userData.json and copy your galaxyUserId number.
2. Paste the number at the end of this link: https://users.gog.com/users/
You will see a created_date that corresponds to the date your account was created.