I've been playing FFXIV for three years and I started playing on my PS3, on a UK based PSN account. I then shifted to a PC, and paid for the PC version, however my Square Enix account was US?

Now I'm trying to add a copy of the game to my PS4, and I just purchased the complete edition from the PSN store from the SAME account I used on my PS3, yet I get the error message that the region is different.

Why is this happening? Will I have to make another PSN account, based in the US? And does the complete edition I bought for the PS4 go to waste now?