Unsafe car seat: Cozynsafe Excalibur

[Nell38]

I am writing this post to tell other mums not to buy the Cozynsafe Excalibur car seat.
It is not safe.
My 23 month old son can loosen the 5 point harness with only one finger.
The manufacturer say there is no fault but I do not accept that the seat is safe.
Please do not buy it. I don't want a child to come to harm.