iMessage & SMS’s won’t send to certain contacts
I have a new iPhone 16 with ID mobile and I now have issues with sending iMessages and texts but only to certain contacts (it works fine for others).
These contacts both have phones that have iMessage switched on and receive iMessage and texts from other people fine.
When I iMessage or text them, it goes through to them but to me it shows an error message. When they reply it does not come through to me.
any help would be great. Thanks
iPhone 16, iOS 18