They automatically put a $10 hold on your account (it mentions this right next to where you swipe your card). Should return to your account in 1-2 business days
Mitchell was it one transaction or a couple? I had a similar issue there. it charged me $2 like 3 or 4 times. After a day or 2 the other charges dropped off. If that doesn't happen I would dispute the charges with your bank.
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