The Polymarket invite code CUSE has been extended into Sunday, arriving just as the Austrian Grand Prix gets underway on June 28th, 2026. New users who register on Polymarket using the invite code CUSE will receive a $50 trading bonus after making an initial $20 deposit — giving them an immediate $70 starting balance to trade across Polymarket’s full range of prediction markets, including live F1 driver winner contracts as the race unfolds. ...read more read less