Everybody 100% chance can win

[Everybody 100% chance can win] --> how to win ?
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1. comment here "i want 20% unit price discount! + order number xxx"
2. Share it on your own facebook graffiti wall if you want to win
3. 20% unit price Discount provided ONLY buy from this sellerhttp://bit.ly/Zff3Yk
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Valid event and order number date: from april 22nd to april 28th