FastTech staff are wrong. This is the right rba for the Smok TFV8 Baby Beast tank. I bought mine from here to also compliment my Alien/Baby Beast kit. My review of this rba is listed. I had no issues with a loose positive post on mine.

As Randall says, it sounds like you have received a faulty rba and it is covered under FastTech's warranty. If they still want to give you the runaround just lodge a Paypal complaint.

It's the post that's slightly loose, not the screws.
I've tried tightening it underneath, but it just goes loose.
My main concern was fasttech telling me they can't do anything because I've ordered the wrong rba.
Thanks again.

I thought it was the right rba, I'm not new to this.
But thought I'd check on here just make sure it wasn't me being stupid.
Can you lodge a complaint with PayPal over faulty items?
Obviously I will give fasttech the chance to sort it first, but nice to have a backup.
I've bought lots of stuff from fasttech over the years and never had a problem.
Hopefully they sort it out, it's faulty and not because it's the wrong one.
Again thanks for helping out.

Yes you can lodge a Paypal dispute as "item faulty or not as described". You can try to resolve it with FT CS but if all else fails you have the Paypal option. FT will probably ask you for photos or a video to confirm it and then ask you to return it and you will have to pay to ship it back to them which they will refund if it is faulty but then you would have to wait 2-4 weeks for them to receive it, check it and then send you a new one. If you are lucky they will just send you a new one due to the low price.