I found a google forum for "rollbit videocall" and it came up with a topic with payment delay and a video call request from the user, you can check it yourself. And just registered and created a topic in the same section where he is. Your investigations have nothing to do with the topic, please refrain from commenting.
If your accusation is perfect then you have done a great mistake by not researching like this before getting scammed.
And many more chats where they just reply like robots "We'll update you accordingly"
Can you post it as video record as screenshot can be manipulated easily. We have a lot of proof about screenshot editing on the forum.