Our phones are with EE, but we took out a BT sim for my daughter with the plan to add ourselves at the end of our contracts. We now wish to add my son at this point, but it says on our account my daughters number is the only mobile allowed on the account and she can't be moved to family as they gave us a 5g sim. It also won't allow us to start a family sim with my son as it says "no plans available".
Hi @MikeyL, welcome to the forum, and thanks for posting.
I'm sorry that you are unable to add your son's mobile to the family sim plan online. You would be best to call us on 0800 800 150 and speak with the BT Mobile team and they'll be able to help you with this.