Maybe they are realising that there received a lot of really bad quality kits from the factory in the last container load and they may be inundated with returns and are struggling to find and send out decent replacements. I'm sure they can return or get credit notes for the faulty kits from the factory, but it still leaves them short of kits they can sell until replacements arrive. Maybe PB will start checking the kits more thoroughly in future.

As McCreed says, email before ordering and insist on a decent check on the kit before it gets sent out.