I would try to keep calling. Weekdays and/or earlier in the day would probably be best. So frustrating when you leave your card. Do you live far? If you can not get in contact with them you may have to drive there I'd you do not live to far or cancel the card and get a new one. I know neither is ideal. Try and see if you can possibly find an email address for them.
Did you get charged for the drinks?
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