Is this 1win online casino legit in SA

I deposited cash as u would do on any betting app. Filled out my bank details correctly. When I wanted to withdraw my winnings because I reached level two on the game. Now I'm told that I cannot withdraw because my account number is incorrect. Which I checked and truely it is incorrect. Now I need to deposit R1500 TO GET TO LEVEL 3 TO BE ABLE TO CHANGE MY ACCOUNT DETAILS. I DID SOME INVESTIGATION AND REQUESTED THE LICENCE NUMBER. LEGAL NAME. BUSINESS Address, proof of registration in Cape town and certificates. If which I have not recieved. I mentioned that I will report this and they threatened to take mE to court for spreading malicious info about the company and legal action would be taken. Then informed me that they have proof of my entering the wrong account number. Stated how much jail time could be served a d that i could suffer financial loss for incurring legal fees any damage to the platforms reputation and that I should carefully consider my actions and refrain from insulting or reframing there customer service staff and the platform. IS THIS Company LEGALLY ALLOWED TO OPERATED A GAMBLING PLATFORM IN SOUTH AFRICA.