Alpha Warranty Failure to completely pay claim Riverton UTAH, Idaho

Complaint: Failure to pay full amount of claim. I noticed that my vehicle was leaking a small amount of coolant and the fan was running on high. I went to a mechanic and had the coolant system pressure tested. The pressure test did not indicate any leaks in the coolant system. I then went to a different mechanic a week later he said he would run a compression test. The results of the test concluded that there was low compression on of one of my cylinders. The mechanic then contacted ALPHA and stated that there was a Cylinder head over temp code generated by the vehicle computer. Alpha then instructed the mechanic to pull the engine and inspect the head gaskets. The head gaskets were intact. Alpha then instructed the mechanic to have the cylinder heads tested. The tests concluded that one of the heads was cracked. ALPHA then stated they would not cover the claim due to an overheat situation. The contract states that it will not cover anything due an overheat situation on a full-service contract. The problem is that the overheat situation only applies to the full-service coverage, It states this in the contract!! I have the Supreme Coverage. If the contract clearly stated this, I would not have any complaint. The contract has been changed since my contract which implies that ALPHA understood that their contract was poorly worded. If Alpha had no intentions of paying the full cost they should not have instructed the mechanic to pull the engine and inspect the head gaskets knowing there was a Cylinder over-temp code. I never received any indication of an over temp from my trucks mechanical system. Arbitration is the only option due to there is an arbitration clause in the contract which was not explained when I purchased the contract. This has been costly and time-consuming. Anyone interested in a class action suit to recover their cost?