I am SOOO disappointed!! We have been coming here...

I am SOOO disappointed!! We have been coming here for YEARS! Tonight, I STUPIDLY paid with cash. Our bill was $124 and I had five $20 bills and one $50 bill. We were told that we only included six $20 bills but the $50 was missing from my wallet! I was forced to pay more to cover for their THEFT!! I know FOR A FACT that I had a $50 bill when I entered their restaurant and that I included it with my payment. Now, they lost a loyal customer. For $30. Hope you enjoy your winnings!