Well I don't see how you can blame camping world if they winterized your coach last fall , which is 7 or 8 months ago. You could of hooked up to high water pressure camp ground.
If you still have a warranty call a local service guy out to fix your problems or does the warranty say you have to use camping world. ??????
I used camping world when my AC went out and I had it covered under warranty ,they said they had to troubleshoot the problem . I called my company and they said 1 hour was authorized. took my rig in and I said they had 1 hour to troubleshoot . I was on the road in 2 hours and I paid my 50 bucks per contract.