The gossip publication said the 18-year-old was upset because she and dining partner Hailey Baldwin were denied alcohol at Mercer Kitchen last week.
"Kendall got up and left and didn't pay for all the food," a source told Page Six. "About $60 worth, and without a tip."
The pair's server, Blaine Morris, of MTV's Skins, tweeted about the incident.
"That horrible moment when you chase a kardashian down the street because she forgot to pay her bill to be thrown money in your face," the tweet said.
But Jenner denied that's how things went down in a tweet Tuesday.
these rumors r absolutely ridiculous! I would never throw money in anyone's face or act that disrespectfully. I was raised better than that— Kendall Jenner (@KendallJenner) August 12, 2014
"These rumors r absolutely ridiculous!" she wrote. "I would never throw money in anyone's face or act that disrespectfully. I was raised better than that."
"Said it once and I'll say it again, don't believe everything you read!" she added
said it once and I'll say it again, don't believe everything you read!— Kendall Jenner (@KendallJenner) August 12, 2014
A rep for Baldwin told Page Six the incident was more innocent than it seemed.
"They thought everything was paid for. Kendall was polite and asked, 'Does this cover it?' They didn't run," the rep said.