Appallingly poor customer service

Pathetic customer service... Had a new line installed at home on 25 July 2018 and internet stopped working due to the DSL line going down on 31 July 2018. Been calling everyday since, sometimes 3-4 times a day and despite being promised that a technician would be dispatched today, 15 August 2018, the technician just didn't bother to pitch... After calling the technical department again today, was just told a technician had accepted the call and we must just wait until he comes... Appalling!!!