BBL products/ had one job/ second time mechanism fails on less than 3 month for second time.

Second door mechanism I bought from bbl that was semi faulty from the start. Thought i got unlucky with my first purchase, didn't get a refund/replacement and bought another. Which had the exact same issue, key wont always turn, it wants to be fiddled with.

Carried on like that for a month or two then it fails to lock whatsoever. Both locks I nearly used a whole bottle of wd40 which only helped for a bit. Checked that it aligns perfectly with door. Mechanism simply doesn't work as inteded. Now I have a front door that doesn't lock. Again.

Definitely wont be recommending any products from bbl