Whirlpool cs said my microwave can't be repaired. They say the wave guide is bad. Because it is only 2 years old they prorated it at $300.00... What bunch of crap! I paid $998.00 for it new, plus the shop that I took it to made me pay $95.00 to tell whirlpool and me this! The model is a kitchen aid khhc2090sss. Please help.