I deposited $5000 into Marex Spectron on last November 4th. On 7th, I deposited $2000 again. After I trading for while, the platform transferred into another platform named sprattfore, then into Katexin , with the reason of system upgrading. I applied for withdrawal respective on Jan. 20th and Feb. 3rd, which was always under verification. The customer service didn’t respond. Today, I found that my account with $20000 or so had become negative $776.