Hollywoodbets complaint : CASH OUT

I have a dispute with Hollywoodbets, which started in 2021, when I complained about an available cash-out, and when I tried to withdraw the cash-out, there was an error on their website. I fortunately took screenshots and forwarded those to them, and asked them to rectify. Till today, they have always told me it is with the investigating department. I need help because clearly they are not willing to refund me.