~snip~
For me, it didn't take a long time to get a response from them regarding the VIP transfer. I have made only 1 withdrawal from Winna, and it was processed instantly. The live support agent also gives replies on time. I'm wondering why you are facing lots of delays at the same time. You should add some screenshots to give support to your claim. Have you placed your bets on sports event?
I do think that if they are handled in such a way, there is probably something that keeps the withdrawal from being processed, maybe they check the activity more thoroughly or something along the way.