She said she plans on taking legal action if necessary.
Leslie says since then she has been unable to reach her former best friend and that Mandy has not returned to work.
"It's a little emotional", Leslie tearfully shared.
As they scratched off the tickets, Vanhouten scratched off a $300,000 instant victor. If any of the tickets were winners, they reportedly verbally agreed upon splitting the money, Underwood told KARK 4 News, a local news outlet in Arkansas.
Mandy may still learn something about Karma, but now everyone has learned a pricey lesson: money changes everything.
She and fellow waitress, Mandy Vanhouten, scratched off their pile together at the bar. Since they work the same shift, she and Underwood would each get $150,000.
Underwood, a mother of five, saw the picture of Vanhouten Wednesday with a check in her hands and a big smile on her face.
Vanhouten didn't return to work, leaving other waitresses to cover her shift. The moment was especially emotional for Underwood who says the two have been best friends for almost a decade.
She hasn't heard from Vanhouten.
"I helped her get the job, put in a good word, stuck my neck out for her, let her stay with me so she didn't have to drive back and forth", Underwood told Arkansas Matters. "I think that's what hurt me the most is as much as I've done, she could have done right for once".
Underwood-who has described the experience as "emotional"-claims she has not heard from Vanhouten, who has been her best friend for nearly 10 years".
Underwood revealed that her boss warned her something like this might happen.
"Lucky told us here at the bar, 'Y'all won't be friends after this.' And we were like, 'Why would you say that?' Money changes people".
"We were both reading the back of it trying to find the little, 'You're pranked!' but no, it was a real one", Leslie confirmed.