Asked support and I got the answer already, my account was suspended due to activity check (I guess becasue I withdraw 5x amount from the amount I received from the VIP transfer)
It means they were checking your luck. How did you manage to win 5× of your VIP transfer bonus amount? Have you gotten any good multiplier on the slots?
Yep, I hit few nice multiplier while playing with the reward and the best one is as shown below:
As usual, I played my favorit push gaming slot and luckily I hit above multiplier (about 1750x) earlier in less than 150 spins.
Withdraw most of them with few tens buck remaining, came back a day to play and win another small winnings then withdraw it.