guys if u do get the email please inform us here. i bought my pre-order from a 3rd party, and i still didnt the full access code. after seeing this thread then i guess its normal. however, i do get the code to register the product at square enix which is here
http://eu.square-enix.com/en/gamereg
this doesnt register heavensward in mogstation (wonder why they don't just auto it)

so please, post here when u finally got your code, then i can ask my 3rd party company wheres my code, in case i didnt get it in my email, then must be their email