GoCashBack Browser Extension
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Up to 4% Cash Back
Knock Knock Cash Back, Promo Codes, Discount Codes & Promotions for November 2025 on GoCashBack
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First Order Cash Back is only available for GoCashBack new users who have not yet made any purchase via GoCashBack. The Cash Back amount is capped for $10. The original Cash Back rate will apply instead of the first order Cash Back rate if your original Cash Back earnings are over $10. Orders that do not meet the Cash Back requirements set by the merchant are not eligible for the first order Cash Back.
Cash Back Special Terms
• Coupon codes obtained from sites other than GoCashBack.com may void cash back.
• Bulk/Reseller orders are not eligible for cash back.
• Orders made with gift cards may not be eligible for cash back.
• Orders made from mobile or mobile app may not be eligible for cash back.
• All cash back is at the merchant's discretion.
About Knock Knock
Knock Knock stuff—funny, unique gifts and stationery. Cool gifts, funny office supplies, notepads, books, journals, desk stuff—we have your perfect gift!
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