Hi jimbrogan,
Welcome to the Community Forums - thank you for posting here.
I'm very sorry to hear you've been having a lot of problems with your handset during calls. Can you please confirm whether just standard calls are just affected, or are Facetime/WiFi calls also cutting out too?
We are keen to get this looked at for you - I appreciate you've already spoken with the team, but if you would like to book in the handset for a repair, we won't need to go through steps you've already been through over the phone to us. Just let us know and we can arrange that for you.
I know you're expecting an important call, but just let us know whenever is convenient for you and we can arrange a repair for you.
Kind regards,
Beth