Imagine you submit for Google Places / Local verification for your business on Google Maps. Imagine that when the postcard Google mails to you with a special verification comes but is blank.

Yes, many people trying to verify their businesses with Google Maps receive a postcard from Google, but the code to enter onto Google Places for verification is empty.

One business owner said:

Supposedly this is an ongoing issue that Google is trying to figure out how to fix. Googler Jade Wang said:

Forum discussion at Google Maps Help.