According to GV Mobile developer Sean Kovacs, an iTunes Store support representative claims that Apple removed the app following an AT&T request. Identified as Raymond C. in the chat screenshot, he apologized for “this unfortunate removal of a great application.”
https://gizmodo.com/apple-rejects-official-google-voice-iphone-app-5324268
Yea unfortunately at the request of AT&T GV was removed from the App store. I am truly sorry for the inconvenience and frustration on this unfortunate removal of a great application.
Kovacs claim he is getting a refund, that he is paying from his own purse. [Sean Kovacs]
https://gizmodo.com/apple-expects-google-voice-app-developers-to-pay-refund-5327889
