Trying to get hold of Liana Justus please 🙏

I have been trying to send.a proposal / response to Mrs Liana Justus’ Head office brief since Thursday last week but her email address isn’t working / Blum es back. This is the email address: ***. I have tried to connect via the one and only contact number as well as Facebook and LinkedIn but it’s impossible to speak to a human being who can help me. Could someone please leave a message for her or explain why my email doesn’t get through your server? Or may be provide me with a work contact number for Mrs Justus. It would be a shame to miss this opportunity. Thanking you in advance Regards Veronique