I just signed up for the search marketing and then called customer service and asked them for the $50 promo code. They deducted the $50 from my account. They will do it for you too.
but' i'm not from the US. from the Philippines actually. I don't think I will be able to call them, is there other way?
It will show up you just have to wait another few days. Just email support if you need to talk to them.
$50 Credit on Signup Promo Code: USCJ12 Link: http://searchmarketing.yahoo.com/arp/srch.php?o=USCJ12&cmp=CJ&ctv=50&AID=10298239&PID=1219012 Enjoy