Rather than via email waiting only on business day and time, really sucks. Are you sure the reason why VIP Host change to Platinum 3 because lack of VIP Host, I don't think this is the reason.
I am not a 100% sure about this, but I think I watched one of Eddie's streaming sessions and he answered a question from someone on Twitch about this. The person was Gold and he was about to go to Platinum I and looking forward to having his/her own VIP host and then they changed it... just before he leveled up.
The answer was something in the line of.... "We (Stake) have seen a significant increase in the amount of people leveling to Platinum I and we (Stake) need to increase the VIP hosts to keep up with the increasing numbers of people leveling up." (The ratio for Platinum to VIP host has increased too much)
Is this kind of information never shared on telegram or on forums? for several times I missed the update on the level system although this includes important information
If I'm not mistaken this year stake has made 2 updates regarding the level system I didn't expect the 3rd time