The Rollbit promo code is TOPBONUS. Enter it in the cashier or sign-up form to activate 15% rakeback in first 24h, 5% ongoing.
The headline is 15% rakeback in first 24h, 5% ongoing, and unusually for the category, the rollover is zero. That means winnings from the bonus convert to cash on the first qualifying bet rather than after multiple replays of the bonus value. Worth confirming in the current T&Cs before you opt in.
Whether the offer is actually worth taking depends on what you play. The expected-value math, including the game-type contribution rates, is in the Rollbit bonuses page and the promo breakdown.
Score breakdown across seven categories, deposit-tested screenshots, payout times we actually measured, and the bits the operator does not mention in their welcome banner.
Read the Rollbit review