@Username50 , Yes, to use Apple Watch cellular, it is around £7.- a month with 10Gig of data, unlimited calls and text. It is an E-Sim, so just need to apply, which I believe you can do it when pairing the watch with your phone, but would need to have both connected to cellular and not wifi, hope this helps, otherwise if having a problem ring customer service and speak to them.
To contact EE customer service dial 150 from your mobile phone or ring customer service for free using Skype or another phone: +44 800 079 8586 or +44 800 956 6000.
