The buck stops with Lisa Vanderpump.

As RadarOnline.com exclusively reported, two dissatisfied customers at her Beverly Hills restaurant Villa Blanca claimed that the amount of the tip they left on their credit card receipt was changed after the fact and when she learned of the situation Lisa said that the waiter was promptly fired.

Now we’ve learned that the Real Housewives of Beverly Hills star’s husband Ken Vanderpump personally contacted one of the customers to apologize for the change.

PHOTOS: The Real Houswives Of Beverly Hills In Hawaii

“Ken called me and said he was sorry for the charge,” Judy Spires exclusively told RadarOnline.com. “He offered to treat us to a meal at Villa Blanca, compliments of the restaurant,” she said.

It looks like another reality show has a kitchen nightmare!

Real Housewives of Beverly Hills star Lisa Vanderpump owns two high end restaurants in Los Angeles, but according to one dissatisfied customer someone at the establishment recently behaved in a decidedly low end manner.

EXCLUSIVE DOCUMENTS: Check Out The Original Signed Receipt and The Statement Showing Inflated Amount

The patron claims that somebody at Villa Blanca changed the tip amount on her receipt after she left the restaurant, and RadarOnline.com has a copy of the original receipt and of the customer’s bank statement showing the allegedly inflated amount.