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Kalshi and Polymarket “referral codes” upgrade $50+ bonus from Prime Day; Updated MLB and World Cup odds

The verified Polymarket and Kalshi invite and promo codes from Prime Day remain available through the end of June — $70 to ...

$50 Polymarket referral code “CUSE” upgraded for Round of 32

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Kalshi referral code ALCOM15: USA looks to go 3-0 in group stage vs Turkiye

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Kalshi and Polymarket “referral codes” upgrade $50+ bonus through Prime Day; Updated PGA and World Cup odds

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Polymarket referral code CBSSPORTS: $50 sign-up bonus with $20 deposit (June 2026)

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