Slots of Vegas Casino's website states that they are licensed and comply with all legislation. However, it does not say which license that is exactly and which laws or regulations they must adhere to. Different licenses have different requirements for an online casino.
For example, the Malta Gaming Authority controls online casinos quite strictly, while a license from Curaçao has fewer regulations.
Slots of Vegas Casino is not yet licensed in New Zealand. It is not allowed in New Zealand to gamble online in online casinos or through other websites that are not licensed by The New Zealand Gambling Authority.
As of October 1, 2021, there will be legal gambling operators in New Zealand with official licenses issued by the KSA.