Service Excellent - but dishonest!

I have app**** for fiber at home with Vox, and after a battle, the installation was done by Vumatel on 11/02/2020. The technicians broke a mirror and failed to inform me of such before they left. This in itself was very dishonest. I logged this with Vox, and a guy called Francois contacted me regarding this. He gave me his cellphone number, and we started communicating. He told me that I need to get a quote for the mirror, and he will report to their HR dept. I send him a quote. He promised feedback everyday, and eventually he asked me for my banking details, yesterday 03/03. I sent it to him. This morning he asked me for the invoice! I called him and asked him, how can I give him an invoice, as I was not informed of the process to go buy a mirror and then claim back. I was not informed of the amount either. He also claimed that he never received my bank details, which is unfortunate, as I sent it straight from Capitec App and from my personal e-mail. This person have been stringing me along for far too long. He failed to supply me with a reference number or any professional feedback. I told him I was going to lay a formal complaint numerous times. No one bothered to call me back, so I take it, he did not discuss this with his superiors. I need this to be dealt with as a matter of urgency!