The DVLA stopped providing the info in early Sep 2017, long before GDPR became active. They didn't issue any announcement to say the process was changing. One day they supplied the information and the next they didn't
What's outrageous and rather worrying, is how a long established entitlement can apparently be rescinded, without notice or any consideration of the ramifications. Makes you wonder what else could be removed/changed/cancelled without warning?
The question is...What can be done about it?