I paid 1x in a salon by credit card. This salon us...

I paid 1x in a salon by credit card. This salon uses treatwell as a booking site. Treatwell has stored my credit card information without my permission and does not comply with the GDPR law. Today I wanted to book a new appointment and when booking my credit card was already linked to my account and before I knew it I had already paid for the appointment. While I always checked pay afterwards.

Fortunately, the operator helped me well, and together with her I was able to delete my credit card details. Hopefully this will be picked up internally.