I'm having an odd issue with Guernsey 07781 mobile numbers.
Specifically I can RECEIVE sms messages from them, but anything I SEND is never received.
I know it's not an issue with the other number as I am chatting quite happily on an EE mobile via SMS.
I've tried all the obvious things, restarting phone, switching between RCS and SMS; changing the number to a +44 at my end, and at their end.
This has been ongoing for weeks.
I see there were some issues between JT & Sure and Sky and BT a few years ago but I've not seen anything recently.
Does anyone have any ideas of things to try, or have a similar experience?
Thanks in advance for any help.
