Log into a different account
I had an account that i bought the hyperdrive bundle on. Around 9 months of playing the game i get an e mail from google saying my sign in information has changed, which logs me out of my blue stacks...
Forum Discussion
I'd recommend setting up a help ticket by going to the EA Help site and opening up a case by clicking 'Contact Us'. If you provide sufficient evidence, the support team should be able to recover your account.
In your report you suggested that you only have the ally code. I noticed that you have a swgoh.gg account, if you log-in to this account and head over to the 'Settings & Sync' page, you will be able to recover your player/account id which will really help in your case.
I wish you best of look with the account recovery!
