Hello Denverbroncosfan122,
We understand that you're not hearing sound notifications when you receive a text message on your iPhone. First, make sure that you have your sound notifications set properly. Here's how to check:
"Set sound and vibration options
- Go to Settings
> Sounds & Haptics. - To set the volume for all sounds, drag the slider below Ringtone and Alert Volume.
- To set the tones and vibration patterns for sounds, tap a sound type, such as ringtone or text tone.
- Do any of the following:
- Choose a tone (scroll to see them all).
- Ringtones play for incoming calls, clock alarms, and the clock timer; text tones are used for text messages, new voicemail, and other alerts.
- Tap Vibration, then choose a vibration pattern, or tap Create New Vibration to create your own.
You can also change the sounds iPhone plays for certain people. Go to Contacts, tap a person’s name, tap Edit, then choose a ringtone and text tone."
More details here: Change iPhone sounds and vibrations
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Let us know if this helps.