So I've literally just received a second from ebay that cost £162 more (£475) as bandai namco allowed me to use points on my first order so I got a discount (£243 + £70 import fee)
I contacted pure arts again to see if I could purchase the broken part only but they seemed very uninterested with helping me as I bought it from bandai namco.
Bandai namco have said they'll give me a refund of £243 or give me £150 off the price.
So I'd basically gain £93 if I give them the damaged one back or I could try to glue the broken part back on and sell it
Or keep it for spares as the forearm and hand part is perfect and I don't think the arm sits very well on the stand to a point where I'm already expecting an accident in uts lifetime.
I'll place it in its proper location later but here's a picture for now.