Hey @PeterKenn ,
how strange! Do you have a PC in your household? If so, you can try to use Smart Switch to see if there are any updates available for your phone. To do it you just need to follow these steps:
•Go to Samsung's Smart Switch website (https://www.samsung.com/uk/support/mobile-devices/where-can-i-download-samsung-smart-switch-for-pc-o...) and download for PC or Mac.
•Install and open Smart Switch on your computer and connect your phone via its USB cable. If you haven't plugged in to your computer before, tap Allow on the pop-up on your phone to give it access. If Smart Switch doesn't recognize the phone, click the menu in Smart Switch and click Reinstall device driver then restart.
•After a few moments, your phone will be recognized by Smart Switch and you'll see several options on the main screen for backing up and restoring. You do not need to back up or restore your phone to initiate an update.
•A software check is performed when you plug in, and Smart Switch will list your current software details. If there is a software update available for your phone, you'll be notified on the main screen.
•If available, Click Update to install the latest software. It will download first to your computer, then sideload to your phone.