Unfortunately, we cannot delete your personal data. This is because See Tickets is only the processor of your personal data. The event organiser from whom you purchased the tickets is the data controller. Pursuant to Article 17(1) of the GDPR, you can address the request for the deletion of your personal data directly to them.
We therefore kindly refer you to the event organiser(s) from whom you purchased tickets, so that they can delete your data.