
The only good advice is to try to endure as long as possible on slot machines. Set a reasonable budget per spin and don't blow everything on 5- 10 spins. The big rewards are usually in the bonus features, and they usually take some time to trigger.
As a company licensed more than 100 times in 20 jurisdictions I think it’s fair to say that Playtech have passed the legitimacy test. As long as you pick legitimate sites that you’re entitled to play at then you shouldn’t have an issue.
Are you over 18 years of age?