So this is my situation.
Back during Final Fantasy XI I made an account on the NA servers.
I pre-ordered a boxed Collectors Edition from EB Games in Australia which is EU region.
Received the physical copy 4 days ago now and tried to register it. Only to get told that my code was invalid because my account must be in the same region.
Now when I received my pre-order code it said "Please note you will need a Square Enix Account to redeem these codes. If you do not already have one, please go here to register: account.square-enix.com".
Nothing about if you do not have an EU account. When I input my pre-order code there was no message that said your pre-order code is for the wrong region, please make a new account.
Instead it allowed me to redeem my pre-order code during Beta 4 (when I applied it) on my NA account, and see that FFXIV:ARR was now listed on my account.
Regarding my physical copy now being in the wrong region, I contact Support to ask to get my account transferred to EU. Nope, cannot do...they don't do region transfers.
Their solution:
Make a new EU account, lose my pre-order bonus, and my characters. And not be able to make a new character on Diablos with my son, my partner and a long standing linkshell as the server is locked to new character creation.
or
Buy a NA collectors edition digital version, and apply it to my account which will cost me another $50USD. Only issue here is they have stopped sales on the download version through Square Enix, and Amazon does not sell outside NA.
The whole region locking is ridiculous for PC. And the situation I am in is fully Square Enix's fault. They accepted my pre-order code for my NA account. If they had not done so, I would have made a new EU account and there be no issue at all.
That they are totally ignoring THEIR mistake and thumbing their nose saying tough is just an insult.