That won't work. They also cannot retain data that could be aggregated to identify you as a person. Anonymising by removing an ID is not actually doing that, it

That won't work. They also cannot retain data that could be aggregated to identify you as a person. Anonymising by removing an ID is not actually doing that, it's just theater. The GDPR has provisions for that. Bottom line is: if you start fudging things or working around it, you're going to get fined.