Service out for more than 7 days

Phone line and internet service has been out for more than 7 days and spend more than 2 hours on my cellphone trying to sort it out. Response is the same every time during the 5 calls this week...\we have escalated your complaint and will be sorted out in the next 48hours"once you get through to them there is also no higher authority to speak to except the call centre agents - really! Do they not work under a manager or supervisor? """