To remove that tag ID from showing up on your devices face as you play please follow these instructions:
1) Switch device on by pressing the top left button.
2) Unlock the device by pressing the bottom left button.
3) Go into the 'Settings' section of the device by pressing the bottom right button and then the top right button.
4) Press the bottom right button until you see the option 'Show Club'. Then press the top right button to enter this setting.
5) Press the bottom right button to change the setting from 'Enable' to 'Disable' and the press the top right button to confirm the selection.
The tag ID will no longer show on your watch face as you play.