BAD SERVICE GRAIL 10615

CLAIM NOT FINALISED FOR THE PAST 5 MOTHS, My vehicle was stationary and was reversed on by a company vehicle that is insured with Constantia Insurance on the 28 of September 2018 so I submitted a claim for 3rd party and was dealing with Ernest Mpholo when ever I try calling their is always no answer and all emails sent is never responded too last time I spoke to Ernest says my claim is finalized and will email me then 1 week later with response tried calling back with answer for I week then finally he answered his phone and says that his not handling the case anymore but I must give him my cell number and he will call me back its gone 2 weeks no calls from him and wen I try calling their is no answer, I am very upset with the service I have received from Constantia group CLAIM NO : GRAIL 10615, ALL DOCUMENTS WERE SUBMITED BUT NO RESPONSE