That is no accusation. The person who made that post didn't even include any specifics or proof. He just says that the withdrawal was not processed and that all. A few weeks back he made a post in this very thread claiming that winna.com is a scam but again without posting anything else showing that he was scammed
I am starting to think he is just a troll.
Its accusation but he didn't bring any proof so people could validate his claims. No mentally sane people would easily believe on just words. That's why if they really need something to bring up and get immediate attention to get help from people or mediator here they should post those proof since its important so people could see that what they are posting is legit.
Since it becoming a normal actions for some trolls to do that.
That's why if they want to get the attention of people and Winna representatives they should post those things needed to show here.