Dreadful Discovery Insure service

For m ore than 3 weeks I have been trying to get a response from Discovery Insure regarding a claim query. To date all I have got back is electronic responses that they have received my email and that one of their consultants would get back to me. But absolutely noth0i0ng has happened and I have resent the query back several times and still no human response. If I could give a minus star rating I would. Appalling.