You must claim your free spins under 'My Free Spins' on the Promotions tab. Your Free Spins will be credited automatically to your restricted balance section of your account.

Yes. All the websites that offer free spin bonuses to win real cash prizes do so after you have a registered an account on their platform. They do so not only because theywant you to register and try their services, but also because they need to make sure you are legally allowed to gamble online.