Battery powered ratchet screwdriver

Hello out there I purchased a battery powered ratchet screwdriver in January only to be told in may four months later that there was a safety issue and not to use it. Contacted eBay they advised me to contact the seller  I did this on the same day guess what, no reply. eBay told me that it was out of the thirty days return window I accept that but four months later , really? why wasn't I told earlier. I have now been trying to get in touch with the seller six times but have had no response, yesterday I looked on eBay website and saw that the same seller is selling other ratchet screwdrivers I wonder if other people will be in the same place as myself, eBay suggested that I try the citizens advice but without any addresses known they can't help anyone else in the same situation