Samsung S8 - Prevent multiple SMS messages being sent as MMS

[Android Central Question]

I have a Samsung S8 and have installed ChompSMS to manage messages.

Just noticed that if I send the same message to several recipients then it converts each one to an MMS message - and I get charged for these as they are outside my EE plan!!!!

Does anyone know if there is a setting that will prevent ChompSMS from doing this and sending each one as a plain old SMS message?

Or, possibly, another app that would handle this better?

 

[RumoredNow]

Like sending a picture, Group Messaging is MMS so the only way to avoid this is to send each message separately.

https://help.ting.com/hc/en-us/articles/205421968-Troubleshooting-Group-Messaging-