Here's the facts of this flow (http://imgur.com/KSsinEq):
1. EVERYTHING that indicates a message will be sent is squished into one corner in 11pt font-size - smaller than anything else in the flow. Neither the header nor the explanation indicate a message will be sent.
2. The two links that you squished into a corner do not follow standard link conventions, they are neither underlined nor in classic blue. Which is interesting because across the rest of your site I see you use the underline convention of grey links (in the "save for later' and the footer for instance).
3. It's not white on black, it's #c8c8c8 on #3a3a3a, those are both muted tones that make the contrast significantly less stark. It makes a difference (check this out: http://i.imgur.com/Pypkv3n.jpg). The header is pure white on the background, so clearly you knew the color would make less of an impact when muted.
Why not just own up to the fact you wanted to get the word out and this was a classic attempt of a company being too smart for it's own good? I'm sure this version converted way better than when you made it clear it sent a message. Instead you come in and just fan the flames.
In all sincerity, I did not even see the link text the first time I looked at the screen shot (and I was consciously aware it should be there). I'm not in the least bit surprised others "missed" it.