Is vivkdex a scam, or is it legit?

This merchant has been continuously finding excuses to prevent me from withdrawing funds. When I tried to withdraw, they demanded a fee on the pretext that my card does not accept large withdrawals. Ultimately, they asked for payment under the guise of freezing my account. However, even after I made the payment, they either refused to provide the account details or deliberately delayed, resulting in my account being frozen.

I initially invested $30,000 and later earned over $10,000. When I tried to withdraw, they accused me of violating regulations and demanded a margin. I then paid an additional $20,000 as a margin, borrowing money from friends to do so. Afterwards, they claimed that there were multiple deposits into my account from different people and froze it again. After paying the money, when I tried to withdraw, they said that large transfers weren't allowed and demanded a transaction fee to proceed with the payment. They also warned that if I didn't make the payment on time, my account would be permanently frozen.