Have you work with them? Lol
I see the OP's trust and very far from people who can be trusted.
Look this reference
https://bitcointalk.org/index.php?topic=5098321.0 as enlightenment.
However, I need your evidence that primexbt is legit, it's very important to know.
I dont even think if primexbt is legit. But im pretty sure its definitely worth to try because there is no kyc required to join the airdrop.