I agree. The OP chose right to order from inTaste. I'd done the same thing, if I was in the States. Many of the mentioned longtime members in the US have ordered their authentic Kayfuns and other stuff from inTaste too. My only worry here is, that maybe the OP's communication with inTaste was not on par with the standards of international correspondence. Those guys are über-helpful, you just have to approach the matter in the right way. Even if you know, that you are right, politeness, for example, goes a long way. In short - maybe there was a human error somewhere.
R
That's possible. I've bought from them as well, but I didn't have any issues either. I, myself, got into a nasty exchange with a business over an atty when I got a nasty reply from them

. I'm playing devil's advocate to some extent here, but I also feel for the OP. I do believe its possible for a bad Kayfun to get through QC. Humans pack them, and humans have bad days. And its his first experience buying there, and maybe his first high end RTA. He came here to ask us about it and received some bad answers in regards to the retailer from people who probably should have been more informed based on their longevity in the vape world.
Can he take photos of the problems? Maybe. If he pulled off that sliver and threw it out, no. Machine oil? Not unless its so bad its black tar. That did happen to me on a k 4 clone from FT, but machine oil is usually not that bad

I had to boil that thing! My authentic Squape R and a Yiloong atty were pretty bad, but not that I could've shown in a photo. I could feel it and smell it, but not photograph it. And hard to photograph parts not fitting together.
Could it have been handled better? Maybe, but I haven't seen their correspondence so I don't really know.
A lesson for us all, perhaps. Take photos immediately of whatever you can if you get an item that never should've left the manufacturer.