Charged more than once

Hi. i charged a customer for a water bottle 4 times opposed to the bags, i guess my finger slipped. they went up to the bridge to talk to a mate to get a refund, she was really cool and kind about it but im nervous im going to get written up ;-; no one had come up to talk to me, my coworker made mer nervous by talking about how they got written up for charging a steak twice so idk.

edit; thanks for the reassurance guys yall are so so kind !