Thank you for your response.  I am using the default texting app which came with phone.  I am also trying to verify whether or not the verification code was ever sent from from the accounts verifying the phone.  However, contacting human beings in technical support at these companies is challenging.

The phone number I am using is new as I could not transfer my old, soon to expire, flip phone number to my new phone.  Another anomaly is I can send text messages to my old flip phone from my Moto G7 Play, but messages from my old to my new phone are lost like the verification codes.  All other texting works fine. This includes sending texts fro my old flip phone to my wife's Moto G6 Play.