Despite Facebook's claims that it has defenses in place to detect click frauds, Manorville, New York-based Limited Run is arguing that 80 per cent of clicks on its ads on the social-networking site may be fraudulent.

Limited Run confirmed on Monday that it would ditch Facebook in favor of micro-blogging site Twitter due to fraudulent clicks on its ads on the world's most-popular social-networking site. The company said it would delete its Facebook page within the next two weeks.

The company said just around a fifth of the clicks it was paying for led people to its website. It claimed that it tried a number of analytics services, but failed to verify more than 15-20 per cent of the clicks.

The company added that it tried to take the matter to Facebook's notice, but the social-networking company wouldn't reply.

Speaking on the issue, Limited Run said, "We tried contacting Facebook about this. Unfortunately, they wouldn't reply. Are we accusing Facebook of using bots to drive up advertising revenue? No. Is it strange? Yes."

Limited Run's decision to leave Facebook could also prompt other companies to do the same. It could add to problems being faced by Facebook, which is already struggling to cope with Wall Street's high expectations