You only can have VIP Manager with minimum VIP Rank Platinum 1.
I'm still on VIP Gold, then I don't have any VIP Manager
It is possible for Gold Member to have VIP Manager.
I know about it when I registered myself to the forum VIP Battle, and I checked the rules first before register through my VIP manager.
Below requirement is taken from the VIP Battle rules:
You would need to have Platinum VIP rank (Gold members that have VIP Manager are also welcome to apply)
If I remember it correctly, I was Gold Member when I have VIP Manager for the first time.
Perhaps there are some special conditions on how Gold Member get their VIP Manager but I'm not sure about it.
When Stake.com started new VIP Program everyone who reached Gold was a VIP, I think year ago that was changed to Platinum