City dragging its feet about repairing the damage they did to our driveway

When I reported a water leak the City sent people out who ruined my driveway, leaving a huge mound of dirt and gravel that covered half the driveway. I logged another call to have this repaired on 21 January. I followed up several times and was always told that the service time is 21 working days. After 21 working days had expired I followed up again and was told that the matter has now been escalated and I will be contacted within 24 hours by the contractor. This was over a week ago. When I called back this morning, I was now told that the call has NOT been escalated and that the service time is 30 working days, not 21 working days. The story keeps changing and in any case today is 30 working days since I logged the call but the agent told me she cannot give any indication when it might be fixed.