Planet 7 casino Sent check for money won closed account faulty account so can't be cashed Canada Internet

I won and cashed out 1400.00 on a bonus. They stated that I owed them 130.00 so they were going to mail me a check for 1270.00. We went back and forth for several months and finally they mailed me a check for 1230.00 because they paid 40.00 to fed ex it according to them. I received the check and tried to deposit it to be told that the routing number was invalid. I done some research and found out that the company name on the check had closed its doors over 16 years ago. They had that name on the envelope also but when I called fed ex the package came from a different company name. When I called a casino in Canada they told me that planet 7 was not regulated and provided me a website for the complaint but they didn't respond at all. They had taken my money and I want the money owed to me.