cables not being replaced

land line ***) was reported for cables being ****** and its now almost a month since its been reported i phoned numerios times and the call centre agent they will escilate it so it can get sorted out but so far nothing has been done i need to get it sorted as we are paying for a service that we can not use this is a utterly disgrace as how they say they will get it sorted out as so on but all is just false promises