100% up to €600 — what that means in turnover
Thunderpick's welcome bonus doubles the first deposit up to six hundred euros. The advertised number is the bonus's size; the decision is made by the wagering requirement, which says how much turnover is needed before money can come out of it.
Do the calculation before the deposit. The required turnover is the bonus (or the bonus and the deposit) times the multiplier; the expected price of that turnover is the turnover times the house edge, i.e. a hundred minus the game's RTP. The wagering calculator gives the first number, the RTP calculator the second. Check the game weighting too: in table games the same turnover can take ten times longer.
A withdrawal presupposes full KYC. Thunderpick requires a document and a selfie before the first withdrawal — this is not a document-free house, even though verification is not needed for playing. A crypto withdrawal is then usually fast and free. See the Thunderpick review and the fast withdrawals ranking.
Thunderpick operates under an Anjouan licence; there is no Estonian licence, so HAMPI self-exclusion does not reach here. Houses with an Estonian licence are compared by freespin.ee, the register is on the Tax Board's page.
Set the limits yourself: the limits guide, help 15410.