Whereas businesses based in or outside the UK had previously been following EU GDPR for processing UK users’ personal data, this is now governed by a new domestic law called UK GDPR. This effectively provides the EU equivalent level of data protection. Those business offering goods and service to EU user should continue to follow EU GDPR. UK Claims that relate to period up to Dec 31, 2020 would be under EU GDPR, and any after that, the new UK GDPR would apply. In practical terms this won’t make much difference to your ability to claim as the data protection principles are largely the same.