When you are in contact with the TM3 support team you will be asked for your Client ID.
This will bring up a record of your clinic detailing different information which will be of use to the various teams in Blue Zinc. You can find your Client ID by clicking on your name at the top right of your TM3 webpage. This will bring up a drop-down which contains different options.
The below image shows the drop down and the Client ID area is highlighted.