PetFirst denied claims for coverage of Rena dysplasia because they say my dog had a pre-existing condition. We had taken her in when she hurt her knee and they claimed that that meant she had a kidney disease. When I called to question I was then told it's because the 30-day trial policy was different from the other policy I purchased. And I was told that claims are reviewed by 'people who have worked in a vet's office previously'. But not qualified to make those decisions. I gave up fighting them to pay what I had paid the premiums for and canceled.