Hello, I had 1 year mining plan from Cointerra for which I payed 8000$ a year ago. They did not finished paying all the months we had on our contract because they stopped on January when they gone Bankrupt.

The letter says I have to fill the "File Proof of Claim" on http://www.txwb.uscourts.gov/

I have to fill the money they owe me and I do not how much ask should I ask, a 100% refund maybe? I am on his creditor list and thats why I received the letter.