New Oil line seeping

[Ceristimo]

I took my W123 for another little drive yesterday. Came back home, had it idle and popped the hood, just to admire the beauty that is the OM617 happily clacking away...

And I was shocked when I checked my new oil lines. The lower one is seeping. Right where the rubber meets the metal collar it is seeping oil.

The line was made by Trucktec. The upper line is made by Cohline, and is fine.

There is no other brand available from Pelican Parts for the lower oil line.

I am so mad, angry and disappointed right now. Getting those lines changed was quite a horrible job, and I was so happy when I got it done. And now I need to buy a new line somewhere and do this awful job all over...Again!?

Part of me just wants to live with the seeping line. I don't care about the oil leak. My W123 leaks oil from so many places that I stopped caring about the stains in my garage...

However, part of me is very afraid this line is going to blow at some point. Anyone else that has a Trucktec line on their car that is seeping?

I'm going to contact Pelican Parts, see if they can be a little lenient and maybe provide some kind of a refund. I've ordered all my parts from here, so I'm hoping I'm a customer in good standing. But ugh, SO FRUSTRATED RIGHT NOW...

EDIT:
As extra information: I changed the lines 2 months ago, but couldn't drive the car right away since the carrier bearing and flex discs on the drive line were shot.
I changed those out last week, and was hoping I could actually drive the car now.

I noticed the seeping right away after I changed the lines and ran the car at idle for a bit after I changed the oil & filter, but at the time I thought it was just oil running down the lines from me touching it everywhere with my oily hands when I put it in.
Now that I've driven the car a few times it's clear that the oil line is seeping.