So you raise a interesting question. Unlike most phone users. I use my phone for texts and calling. I don't do banking, nor music or much else. The only time I use the internet is when I need the gps or update the weather page. My security is set for automatic updates and it tells me I am up to date. I am "computer savvy" on a desktop but no very little when it comes to my phone internet. How does one go about updating android versions?
As for my original problem it still exists. I have manually cleared most old texts but even before that I had 10+GB of space. I have no apps installed, just whatever was on the Samsung phone pre-loaded... Thanks
@RiverCity have you tried any other troubleshooting from the earlier replies?
resetting your network settings?
1. Open Settings>General Management>Reset
2. Tap Reset Network Settings>Tap Reset Settings
If prompted enter your pin, passcode
3. Tap Reset Settings 1 more time to confirm
to update android go into settings>about phone>check system update
You could just have a bad connection to the network. Turn airplane mode on. Wait 5 min. Turn airplane mode off. If you haven't rebooted your phone lately do that first then employ airplane mode. This will re-establish a better connection to the network and may solve your issue.
Thanks to you all for your helpful responses. My texts are now being sent and received fully at this present time. I tried all your potential solutions so I can't be sure which individual one did the trick. It's good to know as a new customer there is so many nice knowledgeable people here who are willing to help. I hope one day to learn enough to return the favour for someone else in need.
Stay Safe ... Stay Well