If your Zappi EV charger is not pairing with the Myenrgi Hub - a possibility is 'channel' on the Myenergi Hub does not match the channel on the Zappi EV Charger.
The remedy to try is to change the channel on your Myenergi Hub so it matches your Zappi EV Charger. Typically by default your Zappi EV Charger channel will be set to Channel 1 (A).
To change the Myenergi Hub Channel firstly:
Put Hub into Pairing mode
To put the hub into pairing mode, briefly press the left-hand button (Pair / Channel)
The Power LED will flash red and one of the other LEDs will be lit to indicate which channel the hub is using. The channel number is written under the LED.
Next how to Change the channel
While the hub is in pairing mode (Power LED flashing red), press and hold the left-hand button. The channel LED will cycle through the channels – Blue for channels 1-4 and White for channels 5-8