Please help

I have got with them only recently, invested $250, then they offered a credit of $4.5k which I closed today and agreed a withdrawal of $5.5k tomorrow, I had trades running, where all of the sudden most trades changed their opening price from recently opened to price when it was a 2 weeks ago, some trades months ago and instant large loss. I have closed those trades manually, but they re-opened 4 that are active at current market price and moved price again in to huge drawdawn blocked account.