Ive finally managed to create an account after suffering the register button issue. 
Now I know the servers are not up but I assumed it would let me log in to the realm status page, however the message displayed is that my account details are incorrect, I'm just wondering whether it : 
1. Takes some time to actually create the account  
2. Whether there is an actual problem  
3. Whether I'm too excited and it just shows this message until servers are live. 
Thanks in advance!