If you've been using Bing cashback feature for discounts on your online shopping, we've got some bad news for you - Bing cashback will stop from operating by July 30, 2010. So, that means you've got barely two months to enjoy using the feature and reap whatever benefits that you can from it. According to Bing , while the cashback feature may have helped some advertisers reach customers with compelling offers as well as provided a new type of shopping experience,