[Fukinchino]

Hey guys, my first post here.
So I'm trying to SE a bunch of PC parts as a DNA,
My housemate signed for the first batch of parts using his real name and signature (which is fine I didn't wanted to SE that anyway)
Then when the second batch came through I asked him to sign it using a fake name and signature.
I then rang up the company and they said they'll query an investigation.
Now comes yesterday, the same postie who regularly drops off the packages knocks on my door and pretty much tries to explain the above, saying it's not his problem and made it very clear that the man who signed the first batch of items was the same person who signed the second batch, but under a different name and pretty much told me to go speak to that guy (my housemate). 
I remained calm throughout the whole thing and said I never received the second package, but I indeed received the first package.
I also paid for shipping insurance via the PC parts company hoping that would've covered me.
What should I do here?

Abit of a backstory, I have a gut feeling real name has already been reported to the local postal company since I had a failed FTID on ebay,
And I've also claimed 2g's worth of insurance for an item that was missing in transit.
I just hope I could get away with this one and take a break from SE'ing lol