Assurant Solutions Will not honor terms of warranty I paid $380 for!!!!! Fort Worth, Texas

A month ago, my son's Toshiba laptop was sent to National Repair Depot (Assurant's repair facility) for repair.  They replaced a mother board.  We had it back 10 days when it broke again and was sent back for repair.  They claim they had two bad parts delivered from Toshiba (I think they are using black market sub-standard parts).  They have had it 15 days with no estimate time of return. 

Assurant refuses to replace the computer even though that is a clause in my warranty contract. They are cut-rate sub-standard warranty people.  Their intention is to ride out this contract to its expiration (9/1) without helping me. I would advise anyone NOT TO BUY A WARRANTY FROM THIS COMPANY.  THEY ARE RIP-OFFS AND THEY DO NOT CARE ABOUT YOU OR YOUR EQUIPMENT.  THEY SPEND THEIR TIME FIGURING HOW TO RIP YOU OFF!!!!@@