Withdrawal not received

I am a member of MOGAFX. My account is 2033219. On June 9th, 2023, I deposited $4000. On September 23rd, 2023, I withdrew $5600, but the platform never paid me. On October 11th, the customer service manager told me to use usdt to withdraw my money. So I withdrew two sums, one of which was $600 and the other $5,000. On October 13th, I received the $600 withdrawal, but the $5,000 has not been received. I contacted the customer service manager several times during the period, and he either excused me or did not reply to my messages. I feel that they just intentionally do not want to give me money.