. >> it happened to her at this benigan's. >> we were completely taken back. jenny murphy said it happened to her and two other couples. >> they gave us absolutely no explanation. >> a night out for dinner with friends at two different restaurants served up a very similar situation. >> we had seen that we were overcharged by $10. i checked my credit card statement or my debit card statement and it had been closed out to $99.99. >> ruth was charged almost $60 more than what her bill came to. restaurant. 21 great american bistro e-mailed copies of the bill to jenny and her friends. >> immediately, we saw that the gratuity amount, as well as the total amount was modified. >> when you say modify snd. >> it was changed. the numbers were changed. they had added an additional $10 to each of them. >> not only can you see the tip amounts were changed, jenny says her reseeceipts showed somethin much worse. >> i looked at our credit card slip which had been completely rewritten and signed by somebody else, and not my husband. >> jenny filled out a police report with the