Galaxy S6 :: Group Text Shows Only Originators Number And Not Other Group Numbers?

GALAXY S6 MMS GROUP MESSAGE PROBLEM

When I receive a multimedia group text, the texts only show the originators number and not the other Group numbers.

This phone is a SAMSUNG GALAXY 6, using Android 5.0.2

Other suggested truning on Group Conversation or Group Messaging in the settings , but that option does not appear.

The instructions I received are below , but like I said, it did not show up on the settings.Is there a difference in the Android versions that would cause the menu to be different or the setting to located somewhere else?

1.) Go to main screen
2.) Go to messages
3.) tap MORE AT TOP RIGHT OF SCREEN
4.) SELECT Settings
5.) SELECT MORE SETTINGS
6.) SELECT MULTIMEDIA MESSAGES
7.) TURN GROUP CONVERSATION ON