[AC Question]

I have a galaxy s5. My messaging is being weird. There's 2 other numbers that are included but they aren't service numbers they are both pinger accounts..
If I send a text from my at&t phone number to the first pinger number
Me _ 1st
Then both pinger numbers receive the text. Like
Me _ 1st _ 2nd
Then when the 1st replies back to me, I do not receive the message. The 2nd person does.
So even tho my number is the number that the 1st person is responding to, I still do not receive the text. But the 2nd person with pinger does.but when I send a message to the 1st both pinger accounts receive it.