I'm very disappointed with the service I'm receiving from Home-connect/Zoom

I'm very disappointed with the service I'm receiving from Home-connect/Zoom. My application was approved on the 20 July to date I'm still waiting for an installer. I have been complaining for almost 2 weeks and i was promised that the installation will be done today, i have been setting at home and waiting for them, no one is communicating with me and no one has come to install.