
Hi @Jason Doyle
I want to help you, but your issue is related to subscriptions and account which is not supported on Q&A forum currently.
Thanks for your understandings.
We can find back subscription administrator ID on the Developer Program dashboard, but the opposite is not feasible.
This account should be one of Microsoft account, Work account and Visual Studio ID. I personally suggest you try accounts that you can remember.
Besides, on the Sign In box, please try to click "Can't access your account".
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