When you use Bing on Ebay you have to pay with Paypal & use a "Buy it Now". But, I used Bing on Drugstore.com the other day with a different credit card and it worked just fine.
Have a great Day
Nancygirl is correct, Ebay requires payment with paypal when using Bing, other merchants do not. Also, if you are using a discount coupon code (free shipping doesn't apply), that will void any Bing cashback.
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