Read Post#6 above. Kinda hard for a manual credit machine to cause an electronic glitch.
Would also be curious s to whether or not the improper charge against their account was made the day they were there or the day they left, or a few days later. Or if it were made MANY days later. If so, it's kinda hard to believe this was an accident.
However, I think we should perhaps withold any judgment on this til we hear more from the folks telling the story, assuming they wish to share the details.
The possibility exists that this was a horrible accident.
The possibility further exists that this was NOT an accident, but this doesn'tnecessarily mean that the folks running the business were responsible or knew about it. Businesses have bad employees sometimes, and sometimes stuff happens that owners or managers have no way of knowing about.
In any case, I hope we hear more bout this, and how the problem iis resolved. Til then, we might want to be a bit circumspect with acccusations or denuciations that may prove unfair or even groundless.