Unable to login to Azure portal with personal acct or transfer to business acct -help!

I have a paid subscription in Azure portal and resources and can't login I'm told because it no longer supports personal account logins. I have no email regarding this. My Authenticator codes length does not match as evidence as per Copilot. I created a work account using my LLC business and paid for support to include email/phone and still can't figure out how to submit a ticket so not sure what I'm paying for. I need help to re-access my account or transfer the subscription from my personal account that I can't access now to my new account. Please assist!