I’m visiting the UK and got a prepaid EE SIM card. After putting it in I haven’t been able to send or receive text messages. Not sure what the process is. But it always says “could not deliver” using an iPhone 8 plus
@Graemeaskes : For sending texts, check your phone has the Message Centre no. setting for EE as +447958879879. Maybe it's still got your home network's one.
I don't know the iPhone but on most phones it's under the Messaging app's settimgs.