Sears Home Warranty 3 Months and STILL Waiting for Dryer and Microwave Repair Internet

I filed a claim via phone to have my microwave repaired at the begining of October 2016, a service man was sent out, he said he was going to order the part, I never heard back. The second week of November the dryer went out, I filed a claim for it, service man came out, I was told they would order the part still no return call or visit...I have called numerous times and am assured that a supervisor will return my call in 48 hours. Here I am end of December 2016---and both appliances still have not been repaired and no supervisor has ever called me back.
I am still being charged $55/mo for the warranty and yet they refuse to fulfill their end of the contract.