I have an iPhone 16e and are travelling to USA soon for three weeks. It is so expensive to buy an add on to roam from ID Mobile for this amount of time. Does anyone know if I can purchase an eSIM from Three and if it will work in my phone abroad as ID Mobile use the Three network. Looking online it does say that normally their specific partners allow this.

Is Three a partner and has anyone used an eSIM from Three abroad for roaming?

Any help or advice would be much appreciated.