My sister went to a chinese restaurant to pick up a take-out order on Friday night, to bring to our mother's for dinner. She used our mother's bank ATM card with a Mastercard logo and left the receipt in my mother's check book for me to take care of posting today when I got to Mom's and did some bookeeping. The receipt said $46.42. In checked Mom's bank account online so I could balance her checkbook, I see that there is a pending transaction for $55.70, exactly 20% more than the actual food bill. My sister says she did not tip on the order, as it was take-out (okay, I know, some people do it, but she does not). She theorized that perhaps the restaurant somehow undercharged for the order and realized it after she was gone and just "corrected" the charge. I am not convinced that that is what happened, after looking at the prices on a menu from a place near where I live, 15 minutes away from the place where my sister got the food, but I cannot be sure, as not all of the items my sister bought at restaurant "A" were on the menu from restaurant "B" and I believe that the place near me is a bit more expensive.
It's not the 11 cents in the post cited below, and it's not Mom's last nickel either. http://www.chowhound.com/topics/443490.
Am I being cheap to contact the bank over this?