Hazy (not condensation) Caravan Windows

Hi - I bought a Swift Challenger a year ago, and two of the windows were hazy compared to the other five clear windows. This is the front middle window and kitchen window.

The dealer agrees with me, and ordered a replacement pair. These were exactly the same. Another pair were fitted - these are hazy too. I am now awaiting a fourth pair. The defective pair give a washed out view compared to the rest which are crystal clear. See images…