Why do I get multiple iterations of the same SMS from iPhone users?

[Android Central Question]

When my girlfriend, or my business partner - both iPhone users, send me text messages ... about every other time the message comes in and is repeated anywhere from twice to 5 or 6 times. Same message, repeated over and over... and then when I attempt to reply, my SMS reply doesnt go thru.
Other times, I only get ONE iteration of the message they sent from their iPhone to me, but it comes in as multiple sections and they are out of order.
How can I fix this?
I am on Galaxy Note 5 with latest FW

 

[B. Diddy]

Welcome to Android Central! It's not just with messages from iPhones -- I see that from time to time from Android users as well. I think it's a network issue.