MBFX deducted USD 610 profit and requested another deposit

My USD 610 profit was deducted on an allegation of bonus abuse, even though I did not use a bonus. I asked for evidence and provided the trading-signal material connected with the trades, but the email responses stopped.

I was then told by a representative that I needed to deposit another USD 500 to recover the USD 610. I need documentary evidence for the allegation and a proper review of the removed profit without being asked to add further funds.