Cleanmaxx anti dustmite vacuum cleaner for parts (Dunblane FK15)

I bought this for my father who only used it once. I only used it once on a futon mattress a month ago, and it was fine on that material, however when I tried using it on my new bed mattress it was catching on the top of the material! See photos. I have complained to Lakeland, but as it is older than 3 years (it is 4 years old) it is out if the guarantee period. I don't like to take it to Landfill. Can anyone use it for parts maybe? Collection only. Thanks for looking.