Well that is the fact --because in the first place, this is what you want and the reason why you have been requested to them and now the Stake.com is not reliable to this problem. However, you can try to contact them with their support and perhaps they will give you a chance. Stake.com was here for so long and they will take care of their consumer to have value and perhaps the luck still have on you to recover your stuck fund on Stake.com.
If I were you, just move on and rest for a while, take a break from gambling, and do other things that something you will forget gambling for a while, because addiction is not a joke, it will ruin your entire life if you let your self eat from addiction.