TV Shop review: Aeropilates

Bought this machine thinking it would half decent quality. Firstly, 3 months in, bungee cord for left hand began fraying. Secondly, 4 months in, red bungy underneath came loose & the rebounder frayed.
Ask for help on getting replacements, got sent them for all aspects that were broken. They didn't fit the machine & when I advised this, it's my fault.
I have tried for 4 months to get the replacements replaced, but they keep saying user error.