It sounds as if you have malware or toolbar/browser utilities that present coupons and other promotions. These do not come from Pogo.com. Running a malware sweeper such as malwarebytes may help as can looking through your Add/Remove Programs or browser toolbars and add-ons for things such as Drop Down Deals, FooBar, Yontoo Layers, and GameVance.
Hope this helps.
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