I cancelled my rental application in favour of purchasing rather than renting.

The lettings hub have refused to delete my personal data after I withdrew, and now are ignoring my legal requests for a SAR and for my information to be removed from their systems. This is against GDPR and they have no legal right to retain my data especially as I have never rented property previously nor will I in the future.
Quite questionable actions, I do not trust companies who retain information with no legal grounds. I wonder who this information is bring shared with if they think they can ignore these requests. Legal action pending!
Delete my data now!