Hello Neil,
We are awfully sorry to see that you are unhappy with your cover. Please know that fabric life is affected by the application, location, and the physical elements the shelter is exposed to. If you live in an area that gets more sun exposure than most of the cover, along with exposure to other elements such as strong winds and snow, it can also affect longevity. We do offer replacement cover kits in Standard, Heavy-Duty, and Ultra-Duty material. The heavier material fabric has a longer warranty and life expectancies which might better suit your needs. If you would like to discuss any of this in more detail, our customer service team are available 7 days a week 1-800-560-8383.
Thank you