How to remove your Groupon account
Unfortunately we could not find an automated way for cancelling your account. You’d better send them a mail to ask for removal (use the link). This goes for all Groupon sites (e.g. groupon.de, groupon.nl, etc.).
This is stated in their Privacy Statement (nr 5). https://www.groupon.com/privacy
Nr 3 in the Statement is about sharing your personal data (which in some cases they will share for commercial purposes), so read well.
Direct removal link: https://www.groupon.com/contact-us
Helpful Trick: Removing online data
Publicly visible text/images often aren’t properly removed even when you succeed in removing an account. Try editing or removing them manually before removing the account itself. If you’re unsure what happens to your tracks: this can be found mostly in the Terms of Service/Privacy Policy; otherwise you can always contact Groupon and ask personally. By the way, removal requests don’t necessarily mean your data will actually be removed (e.g. due to legal obligations).
Helpful Trick: Remove third-party logins
If you signed up for Groupon using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Groupon. Click here to find out how.