No gas to cook top

Sooo, got the new part and pulled the cooktop. The new part was ordered because Dometic told me that the old part was defective and had been replaced by a new item. They sent a schematic of the original part and it is clearly different than the new part. Too, they indicated that the new part would be covered by warranty. Turns out that the new part and the part in the cooktop are the same. And the only way Dometic will apply a warranty is to have an official Dometic center declare the old part defective — which, under the best of circumstances, is only possible at high elevation. As for Escape, the trailer manufacturer, appliances are warrantied by their manufacturers! They were of no help on an RV that is billed as high quality and only several months old. Why am I not surprised!