can't sign in to my account, lost access to phone number

I'm posting from a temporary account because I can't sign in to my real one.

My password was reset and two-step verification is enabled on my account. The phone number on file is an old Ecuadorian number I no longer have access to and cannot recover. I have access to my email, but Adobe requires a second method.

I have an active, paid Lightroom subscription and years of professional photography work in my cloud storage. I'm a working photographer and this is my archive.

I've tried the support chat — it won't let me in because I can't sign in. I've called the phone line and the automated system disconnects me every time.

I can verify my identity with my billing card, billing address, invoices, and account details. I'm asking for help removing the old phone number so I can regain access.

Can someone from Adobe please reach out?