How can we sue an e-commerce company for providing nonworking items?

Hi!

How can we sue an e-commerce company for providing nonworking items that were supposed to be installed, but didn't?

They keep telling about hours, but nothing is done. The item is dangerous and can lead to lethal consequences as technicians say.

I filed a case in Dubai consumer rights, but I guess nothing will be done. Maybe the court is the only solution?