Creating a Google My Business (GMB) listing usually involves verification through postcard by mail. Phone and email verification are typically only available for certain types of businesses or under specific circumstances.
Creating a Google My Business (GMB) listing and the verification options available can sometimes vary based on location and other factors. Keep in mind that Google's features and processes can change, so it's a good idea to check the official Google My Business support resources for the most up-to-date information regarding verification methods and the creation of GMB listings.