Welcome to the community and thank you for your first post. Just to let you know we've merged your posts to avoid confusion and any duplication.
Sorry you're having some issues getting in touch with us regarding a new SIM; what was this for please? After locating the account from the forum information I can see that we have been in touch regarding our migration have you had issues with the SIM we have sent you?
Please do pop back with more information when you can and we can go from there.