MADISON, Wis. -- One Madison business owner is doing his part to stop people from taking money from charity.

John Williamson sells Lance Armstrong Cancer Foundation bracelets at his store, Sports World, on State Street. But now, he won't let people buy more than 10 bracelets at a time without checking their reason for buying them. That's because so many people are selling the bracelets for a profit on eBay.

"Whether it's cerebral palsy, breast cancer, or 'Live Armstrong' cancer, I just object to people heavily profiting much more than the organizations profit from the popularity of the wristbands," said Williamson.

Williamson said he's been selling the bracelets for three or four months and has already had 15 or 20 people try and buy all the bracelets he has in stock to re-sell them.

He's raised almost $15,000 for various charities through the bracelets.