3 weeks later, no replacement car and no progress with the claim

My father’s car was damaged on the 24th of November (over 3 weeks ago), and the claim was reported to Discovery immediately. There was no feedback from Discovery until the 6th of December when they sent an email offering to pay out an amount they deemed to be correct. After getting a quote, it was evident that the damage was over three times what they had agreed to pay. The vehicle is not road worthy, and up until this point, no replacement vehicle was offered. On the 11 th Dec, the panel beaters sent a revised quote. They said that both doors were buckled and had been pulled free of the post. The rear door needed replacing. I forwarded this to Discovery on the same day, and so did the panel beater, and I heard nothing since. It is now 3 weeks since the incident and businesses are closing down and I am left without a car and no replacement car. I have also tried to get hold of the claims administrator Samukele Mnguni at his landline provided or email address on numerous occasions in the past week. The phone is not answered and the emails are unanswered. We have also emailed the complaints division, but there has been no response.