Just a quick note about Zeiner's - I have bought a lot of stuff from them and have never had a problem. Their service has always been excellent. A few weeks ago I ordered a mold through their site. A short while later, I got a call from them telling me that the mold would not be in for 2 days and asking if that was OK. I have also never had a problem with their packaging.
I think that ANY of the vendors from whom we buy can screw up occasionally , whether it is Zeiner's, Barlow's, LPO, etc. I have bought from all three and have had generally good service. I understand that you can get PO'd - (as I have!!) but I would give any of these guys another chance!
Pete