How flipping frustrating....
Thank-you for your help, and thank-you for forwarding it to a moderator.
Stay safe 🙂
Welcome to the Community and thanks for taking the time to post.
I'm sorry that your contacts are not showing in BT Mail.
I've sent you a Private Message with details on how you can get in contact with the mod team.
If you used disposable addresses on BT Yahoo Mail, see this separate thread: