Cannot login in Microsoft 365 developer Administrator account

Hello,

I'm having trouble logging into the Microsoft 365 Developer Program because I've lost access to my Google Authenticator app. When I try to sign in, it prompts me for a 2FA code from Google Authenticator as I think, which I can no longer retrieve due to losing my phone.

According to the article "Common problems with two-step verification for a work or school account," there should be alternative options available, such as using SMS verification. However, I am not seeing this option during my login attempts.

I can log into the account from which I requested access to the Microsoft 365 trial developer subscription. However, I am unable to access the account designated as Administrator in the Microsoft 365 trial developer subscription, which ends with @****.onmicrosoft.com.

Is there any way to recover the account using my @outlook.com email ? It's obvious that ******@onmicrosoft.com email is my email as well because it as I remember I used @outlook.com to set a request for Microsoft 365 developer account and then I got ******@onmicrosoft.com email, so they are kinda linked

Could someone please assist me in regaining access to my account?

Thank you in advance for your help.