Damages caused to my vehicle due to falling windscreen from PG bakkie

On 21 February 2018 at about 15:45 I was traveling on the N17 Freeway just outside Johannesburg direction Springs. A bakkie from PG glass overtook me in the right hand lane. He was about 10 meters ahead of me when glass fell from the side stand on the bakkie, shattered on the tar and damaged my vehicle. I reported the incident telephonically on 22 February 2018 by calling the number ((011) ********** ) that displayed on the side of the PG glass bakkie. I was informed to call (011) ********** . I called this number at 10:55 and spoke to Gylard. He said he would investigate and get back to me. On 23 February 2018 I called the number again and asked to speak to Gylard. The telephone operator gave e his cell phone number ( ********** ). There was no answer at this number so I left a message. On 1 March 2018 (14:21) I called Gylard at ********** . He asked me to email the details to ********** which I did. There was no response. On 6 March 2018 (07:08) I sent a follow up email to ********** No response. It is two weeks from the incident and I expected a response from PG glass.