Momentum Insure have no sense of urgency in responding to claims

My car was damaged on the 29th of June. A claim was registered with Momentum on the 1st of July and my car was assessed on the 2nd of July. To date I still do not have a date for my car to be repaired. I was originally given a repair date of 17th of August and on 2 occasions have contacted Momentum to request a sooner date with a different repairer. They do not get back to you. You need to continually follow up and do not receive feedback. I was told that I cannot contact the repairer directly as this needs to be managed through the assessor. Almost a month later and nowhere closer to having my car booked in, not to mention repaired. This is also the second time I have had a claim and not received feedback from this company.