India, April 17 -- What was meant to be an exciting promo quickly turned into frustration for fans of Red Robin. Just minutes after the clock struck 10 a.m. CT on Thursday, eager customers flooded the site to claim the limited-time "Bottomless Burger Pass"-only to find the website unresponsive or completely down.

Despite the brand's warning that quantities were limited and would go fast, many users reported being locked out before they even had a chance to click "buy." So what exactly happened?

{This is a developing story. Please keep checking this space as the story further develops.}

Published by HT Digital Content Services with permission from Hindustan Times....