These keys are most definately from the Humble Origin Bundle, of which key reselling isn't allowed.
i bought them all for a low price from a friend of mine, what is "humble bundle" anyways?
Now, that is probably a lie.
you didn't just break the rules, you miserably broke the rules
Others who are selling humble bundle keys sell for way less than that, while they are not supposed to, but at least it's at a fairer price. I suggest you divide your prices by 100.