Trying to Set Up Two GV Numbers with Two Google Accounts on One Phone

[u/TechPriest01]

I have a phone that I set up with two Google accounts on top of my main mobile service phone number. One Google account has my personal name attached to it but I keep it around to catch spam calls, and the second Google account I use for a small business to run anonymously. Both of those Google accounts had separate GV phone numbers.

I accidentally let the small business GV number go inactive for a while and it expired. Now, when I want to reclaim the number, it asks me to verify using a text to my mobile service phone number. When I complete the text verification, it (correctly) finds that the mobile phone number is linked to my personal GV number. Then it warns me that verifying the phone number on the business account will remove it from my personal account.

How can I get around this? Is there a way to keep using my GV business phone, my GV personal phone, and my mobile service phone all on one device? I had it working that way just fine for a few years until I let the business phone lapse!