Replacement has just arrived, it is so much better
No pink whatsoever, a very faint green area which I can only barely notice in the dark if the light is on high. Contrast is really good on this one too.
There is still a very small amount of light bleed on the bottom left-hand side, but nothing compared to the one before.
I am happy with my PW
Thank you to all who have wished me luck in getting a good one
Edit: and the cherry on the cake is that it's on 5.3.1 so I can jailbreak without having to downgrade the firmware fist. WiFi staying firmly off for now