mystake in United Kingdom. Last night, I was scrolling through a list of UK online casinos when I saw a banner that read: “Use mystake promo code for a 100 % welcome bonus up to £200.” I paused. The headline was straightforward enough, but I wanted to know what actually lay behind that promise.
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GB: When I first signed up, the registration screen asked for a promo code. Typing in the mystake promo code unlocked a 100% match on my first deposit up to £200.