Samsonite wheel repairs

I was given a set of Samsonite 4 wheel luggage as a wedding present. The one cabin size case wheel rubbers were damaged on my overseas trip. I am unable to get replacement wheels as Samsonite say my case is TOO OLD. It is 14 years old. I don't believe that is old for something so expensive! Rather just buy a cheap case from a discount store and bin after 10 years!!!! I am not a happy customer!!