Installation New Land Line

Requested a line installation, they sent me an sms to advise me that they will come 10 Feb 2016 between 7:30 and 16:00. I called twice, the first call I was advised to call them the next day (9 Feb) to get the technicians number. Next day I called and the call centre lady were very rude and told me that I cannot get the technicians number. My husband had to take a days leave to wait for them. On the 10th at 11:33 we received an sms to inform us that the technician has been dispatched. He never arrived. Thus a days leave wasted.... At 16:20 I called, and the call centre lady informed me that the matter will be sent to the escalation dept, and someone will call me that same day. No one called, I received an sms the next day to inform me that the installation for the new line is now scheduled for 4 March 2016? This is unacceptable, how can they expect a person just to keep on taking leave to stay home and wait for the technician never to arrive?