I lost everything when Principal terminated my benefits without calling or emailing me

I went on short term disability August 1st of 2013 I had to get my left thumb total reconstructed. After 6 months of short-term I went on long-term. My company told me I had to be 100% to return to my job. I work for a company that makes high explosives I was a nitroglycerin operator. Around October of 2015 for no reason they terminated my disability I didn’t receive any phone calls or received anything in the mail. I’m a father of four girls I lost my house my brand new truck and motorcycle was repoed. Also I could not afford to pay my insurance through my company so I had to go on State Insurance unfortunately my orthopedic surgeon did not accept that insurance I was scheduled for a second operation two totally fuse my left thumb. So I had to find another orthopedic surgeon that took state benefits so instead of having my second operation November of 2015 I had to wait until March 31st 2016 just to see my new dr. I was still on all restrictions I got my second operation on April 11th 2016 during this time I was on short term disability to January 2016 I was denied my payments 3 times I went through the proper procedures I had doctors notes. Today is September 23rd 2016 I have not received a payment since January I was told today I was denied that they found I could do other occupations I am 43 years old unfortunately I have a learning disability when I was younger I’m still under doctor’s care I do not even start physical therapy I am going to lose my second house I’m going to have 4 children homeless it is very heartless and discriminating there be a law against this