Already different gambling websites have got their own VIP programs with different bonuses. So, people won't easily fall for the bonuses and VIP program. Every user initially look for the trust of the website, and the basic thing that makes people have trust over the platform is running a signature campaign and different competition. So, try for a creative and attractive announcement thread along with a campaign.
Apart from that the license is also one of the important components on online gambling sites and i haven't found it in newvegas
Other interesting information that I found here
https://casino.guru/newvegas-casino-review WITHDRAWAL LIMITSper month $12,000
per week $3,000
I'm sure almost all gamblers not like this in fact this is one way to avoid whales playing here