Withdrawal refusal. Please assist even legally please.

Hey all. i started off with 250$ and then a woman named Jessica convinced me to deposit another 2000$, she assisted me with a few trades and told me to do nothing in the next week as she is going away for work or something. I lost all due to her negligence and then she said it was her mistake to she will use company bonus so that i can try and get back what I lost which i did not. In fact i've started to even lose more. then someone from their acc recovery department assisted me and advised to deposit more to help recover my acc, over a few weeks another 3800$ was deposited. none of that was profit from their bonus. it is all my own money I deposited, now that i want to withdraw it they find any excuse not to do so even though i tell them its rightfully my money and i want it urgently, the support department keeps emailing that an agent will contact me however that does not even happen anymore because i insist on getting my money back, please can someone legally assist me, i've been through so much with this company in the last year and its really been draining me. i just want my money thats in the acc (and take the first loss due to their negligence) and then they will never hear from me again, i consider this now a theft case as im being ignored and withdrawal are being refused, can anyone please assist me.