They will refund you your $$$. That's what takes so long sometimes cause they have to go back into their system to reconfigure everything & find out who had what & when. The $$$ that "you could have won" you don't get, only what you bought in for & possibly the $$$ from what place you were in when it shutdown. EX: if you were in 10th place in chips when it shutdown, you will get what 10th pays out. You should get an email from them soon.
I've been busy all day, running to and fro, came home for my poker fix and find out that tilt is down again. They will come through and send you an email and refund any $$ that were spent. They are good that way.