Toyota Homecharge RFID tag issue plus more

[Houndcatcher]

I've finally got my "free" Homecharge EV Charger installed for my Rav4 Plug in after 4 months! I'm having issues with the spare RFID tag, the main one setup by the installer works fine and as he said keep it safe as it's important I've tucked it away with the spare fob and other important stuff. The other one just refuses to scan and bind with MyT App I just get a single beep from the wall box and a spinning circle type thing in the App but it never appears in the list but the App status changes to saying that a car is plugged in but there isn't the cable is not connected!! I've tried this countless times and always does the same. Any ideas? If not who is actually responsible for it British Gas or Hive as it must be a warranty issue?

The other issue is the constant loud hum from the electrickery they installed by our consumer unit 😡

[Houndcatcher]

Think I've sussed it myself! The 2 tags that come with the charger are the same tag except 1 is the master and must not be misplaced. Guess the guy explained it badly or I wasn't listening properly 😳