Don't work

I ordered one and got a pack of six USB C to headphone jack for my phone as Samsung have decided to get rid of headphone jack.

When I ordered I genuinely thought it was coming from the UK but how wrong was I. I did not know it was coming from China until the item had been sent and YES they do NOT WORK as not compatible with my phone but website said otherwise. I am not sure if i will even be able to return.
NOT HAPPY!!!!!