Do NOT use this company. It's either a scam or the worst customer service of all time.
If you opt for the 100% refundable contest and are not pleased with the results, they will do everything they can to deny your refund.
The representatives, including Lucy who has commented on many of these other reviews, just bounce you around from person to person, each one apologizing profusely and promising to raise a ticket to get it taken care of, and then they ignore you completely and hope that you go away.
It's now been 3 weeks, and I have an email box full of chat transcripts and opened tickets, each one verifying my refund status and promising to raise a "priority ticket", and they're so sorry, that OTHER person did it wrong, they'll take care of it this time.
Thankfully I used PayPal, and have raised a dispute with them over this, and it's still been a huge headache. If I had used a credit card, I assume they'd just keep my money and jerk me around forever.
Use one of the other design contest companies, if you have a choice.