Yes you can withdraw it straight away, anything from level 15 upwards does not require wagering

Sorry I didn’t really answer your question, I received €160 for reaching level 18

I promise I will share if I don’t have a resolution in the next few days, I don’t want to turn anyone off playing there unless I have to! Regarding the Macau quest from level 15 onwards it’s cash prizes with no wagering, so for level 15 you receive €100, level 16 €120 and so on, I reckon it will be very hard to reach level 21

P.s. I am currently on level 18 in the Macau quest

*Caution* Is many people having issues with Winz casino? I am currently in a dispute with them. I will inform you all of the details if it is not resolved