For any company that is compliant with GDPR (after 25th May 2018), the answers your 4 questions (2 on data collection, other 2 on data subject rights) must alre

For any company that is compliant with GDPR (after 25th May 2018), the answers your 4 questions (2 on data collection, other 2 on data subject rights) must already be in their privacy notice on their website, with instructions for how to contact their data protection officer.