I had a strange and similar interaction with Google recently. I was asked to do the Android developer verification, but then I missed a deadline at some point. Support said that I would need to create a new Google account for all of this. I said this was unacceptable as this was a Google account I had for nearly 25 years and I didn't want to create another. They said tough luck, go make the new account. Luckily, I had recently married and was making a new account for the name change. I tried to use that account, but it wanted a different phone number to use for verification, but I only have one number and you can't use Google voice numbers. I went back and told Google I cannot use the same phone number to verify and I'm not buying a burner phone to do this with. Then they just said "Ah, ok, we'll fix your original account then" and fixed the original account. This was literally a week of back and forth. Pointless waste of time.