Order a product (electric shaver). It was out of s...

Order a product (electric shaver). It was out of stock. He recommends a more expensive one. So far grade 10 communication ...
The unsealed product comes, and the box and bags in it. Only the prospectus bag was sealed.
I ask (by email) for instructions. return as advised by their site. No one has answered since.
Eventually, I disinfect the device and start using it. It's not working properly. Someone got rid of him or at least put a new set of blades in it.