We have a 2013 work van that a spark plug blow ou...

We have a 2013 work van that a spark plug blow out of the engine, we had it towed to a reputable GM service provider in town and had the work completed professionally, quickly, and no word back from cars protection plus. Since the van is used to service our clients in the area, speed is of the essence. We saved all receipts and contacted Cars protection Plus who rejected our claim based off their fine print policy of "ANY REPAIRS PERFORMED PRIOR TO AUTHORIZATION WILL BE DENIED". We are curious how many other warranty holders have been denied fair service. If Car protection plus wants to speak to us, we are here to listen.