Can't signup for Google Cloud free account: An unexpected error has occurred. Please try again later. [OR-BSBBF-01]

Question

When I try to signup for a Google Cloud free trial, I get the following error after the page which checks your details and payment method: An unexpected error has occurred. Plea

Answer 1

My old address was listed on my payments profile. I created a new profile with the correct address and this solved the issue.

[After going around in circles, it appears my old address could only be updated by contacting Google directly despite their online instructions to the contrary. Instead of waiting to speak to Google, I just created a new profile.]