TERRIBLE SERVICE & NO ONE GETS BACK TO U !!

I had to wait for the first available date to make a service booking which was one & a half weeks later, scheduled for the 11/03/2016. I got an sms saying service booking is scheduled for the 10/03/2016. Today is the 15/03/2016 & no one has come out, called to say why they aint coming. I've called numerous times in to the call centre, was put on hold numerous times for up to 6 minutes, so the agent could call the technician or do whatever else only to come to me & say the technician is not answering his phone & we can help you book a new service call out - next available date is next week the 22/03/2016 ...... WHAT ???? This was maybe after I got cut off about 3 times. I called in on 14/03/2016 & left a message for the technical manager to call me back. he didn't call. I called back on 15/03/2016 & left another message, still no feedback or call. What pathetic service is this, when the damn debit order goes through & we're being charged for \NO SERVICE\". I'm not paying for this month cos no service, no call out & no monitoring !"