Received a missed call (only 1 call) and SMS from the installer.

Requested to respond back to them on installation confirmation.

The number is 03-22465000 but when I called it but it seems this number is not in service yet. Unifi main line at 1-300 is not able to help as they don't know the number of their installers. Installation is due this Wed.

Any of you guys know the installer number as mentioned above or have encountered this situation.