Still getting text problems to non Apple phones

[#1]

My data has returned to normal, I can make and recive calls but I am still having problems when texting all non Apple phones.

Either my messages are failing with the error message of Message Sending Failure or the message doesn't go through at all.

I have 'switche doff and back on again' Switched to Airplane mode, as advised, but still not working. I checked the network in my area and it all showes good. 

Can anyone else help please? 

[#2]

@mxbert
Hi, could you try a reset of network settings
(be aware this will erase your saved wifi passwords, it won't erase or affect anything else)
Go to
Settings
General
Reset
And click reset network settings
The phone will switch off and restart automatically in a few minutes