Dischem Festival Mall

I was in queue when cashier number 1 at festival mall called to the counter and asked me if had a dischem card. I was asked if I've had one before and I said yes. I called out my 13 digit number only for her to tel me I can get back online. I asked her why would she call me out for to assist someone else with my ID. If that person did not have a card is not my problem. She did not ask for my consent and it's in contravention without getting consent. The person she helped is now walking around with a slip with my personal details on it.This all happened on the 27th May 2026 at 12:18 pm. I want something to be done about That cashier because all the other cashiers were laughing. Otherwise I will take it further because my information was used without my consent. I need feedback about this.