Firstly visit the trust page of Topbetbroker: https://bitcointalk.org/index.php?action=trust;u=3365300
Then follow the instructions which are written here: Step to flag a user (trust flag)
I think you should create the type two flag against Topbetbroker: “This user violated a casual or implied agreement with me, resulting in damages”

---

Like I have said above, I had sent a message to their email support with a hope of getting their response here. And today I have received this response from them.

https://i.imgur.com/pPVAZrv.jpg

I'm wondering why they are saying something like this!