About this offer
The standard signup bonus at Amazon Jackpots is 3,000 Gold Coins, GC only. No Sweeps Coins land in the account until a purchase is made.
The first-purchase offer is where the site earns its keep: a single $20 Coin Package unlocks 112,000 GC + 65 SC in total value, more than 200% extra on the sticker price. 60,000 GC + 40 SC land instantly alongside a spin of the Welcome Wheel, and an 8-day Power Boost streak adds the remaining 52,000 GC + 25 SC in daily installments.
Miss a login day during the Power Boost and the streak resets, so the full bonus only lands for players who show up daily. It's a flat, public $20 offer with no separate promo-code layer.
Sweepstakes casinos do not issue promo codes. This offer is attached to the link above, so following it is the only step.