Hoover Free Flights Promotion

If you want to know why many promotions use a code that you must look up online, this is one of the reasons why. It allows the company to control after the fact how many prizes are given out.

Previously:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=33306801">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=33306801</a><p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=20667774">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=20667774</a><p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=15993056">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=15993056</a><p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=6861677">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=6861677</a>