It appears the Microsoft Store is currently allowing customers to use a 5% discount, obtained from Bing rewards towards a Surface Pro 3. Typically high value items are excluded from discounts including the Xbox One console, Surface 2 and Surface 2 Pro. Here is the full text:
At the online Microsoft Store, we’ve hand-picked the latest technology products. Redeem for this reward and receive a 5% discount – restrictions apply.* You’ll also enjoy free ground shipping and free returns on everything we sell.
*Valid from 11/13/2013 – 12/31/2014. Offer valid online only at the US Microsoft Store. May not be combined with other offers or applied to prior purchases. Excludes gift cards, pre-ordered products, Office 365, Volume Licensing, Xbox One console, Surface 2 and Surface 2 Pro. Limited to stock on hand. Discount applies before taxes, shipping and other fees. Limit 1 coupon per transaction. Not for resellers. Quantity limits may apply.
A 5% discount for the Microsoft Store can be redeemed for 50 credits, or 40 credits for a gold member. You can earn 1 credit for every Bing search with a maximum of 30 credits per day. For the base i3 SP3 this would come out to a $40 discount. For $999 model, you get it at $949.
It is likely Microsoft will fix this loophole shortly, take advantage of it while you can.
Add Surface Pro 3 from Microsoft Store to your cart and use the promo code you received from Bing Rewards. If you are new to Bing Rewards, sign up here. First person to comment on this post will get a 5% off promo code from us.
Source: Bing Rewards