Just wanted to provide an update to what happened on my account with this issue.
TL:DR:
After speaking to Three EA reps and Two Microsoft Xbox employees, I have found the issue relating to why I couldn't move my subscription from one account to another.
And yes. It seem's like a MASSIVE oversight on EA's end and a ridiculous part of their policy. An incredibly old EA Account cannot be linked to a new Xbox account if it was tied to an account from 10+ years ago. Spanning two console lifecycles, I am unable to move the account link from one device to another...
Ok. So for some background info...
I used to play Battlefield Bad Company 1 & 2 on an old Xbox 360 that I no-longer own or use (I became a PC gamer when BF3 released.) This old Xbox 360 account was linked to my email that I use for EA Desktop / Origin. Created around 12-13 years ago and still used on an almost daily basis due to me now playing EA games on PC.
Now, when Gamepass added EA Play to their service, I was interested and created a new Xbox account through the PC app with the aim of getting the EA Play benefits on my existing EA / Origin Account. When prompted to download the EA Desktop app, I did so and was auto created an account with my New Xbox ID / email. After unlinking my Xbox Account and Personal PC account through EA's website, I was now stuck with attempting to link my new Xbox account with my old (but still used) Origin / EA account.
So what did I learn from Microsoft?
The issue isn't on their end. Here is a snippit from the chat I had with the staff member.
Me: "Linked Accounts Found - Your accounts can't be linked because EA Account for ***EMAIL ACCOUNT*** (the correct email I want to use) was previously linked to the Xbox account for "TMPL0UKKY5" (Unknown account). An EA Account can only be linked to one Xbox account in its lifetime."
MS Employee: "that's weird cause is saying like your email is attached to a xbox profile TMPL0UKKY5 but that gamer tag doesn't exist.
*After a bit more chat between them and myself*
MS Employee: "Yes is quite confusing but I think I got it, so far is like the EA is not letting link your due to was linked before and it can only be linked once in its lifetime! Unfortunately, we can't unlinked any account from our end since we don't have the tools to do it. So I would recommend you to get in contact with EA support again, to see if there are able to link your account again to the correct email address you want to use!"
How did EA respond?
Here's the response I had from an EA Staff member.
EA Employee: "Thanks for waiting! As far as I am concerned. I believe the reason you are getting the error message while linking the Xbox Account to EA Account is that your Xbox Account can only be linked to an EA Account that was never connected to an Xbox Account before. (Confirming that it was originally linked to an old account from 10+ years ago.)
It is working as intended as per the wording in the disclaimer player gets on their end via self-service tool and the help article for linking persona. You can relink the same persona again with which account it was unlinked. (We cannot change the link from your new account to the already existing account you want to connect to.)
I believe linking your Xbox Account to an EA Account that was never linked to an Xbox will help you link the accounts without any issue. I hope that you will understand. (Link your Xbox PC account to a brand new EA account to solve the issue.)
Conclusion:
Basically. We cannot do anything about unlinking your account that you haven't used for over 10 years since the launch of Battlefield Bad Company 2 and we plan to do nothing to fix the issue.
Because of this response, I've no use for the Xbox Game Pass or EA Play so decided to unsubscribe from the services as I will not ever be able to get any of the benefits of EA Play on my already existing account.
Ridiculous that there's "nothing" they can do.