Matrix42 BDM/Channel Account Manager interview questions

Applied online via Seek. Received email requesting interview Phone interview with MD of recently acquired company SilverbackMDM, who was based in Germany on a Thursday. Told that would be put through for 2nd interview on following Mon in Sydney office as MD and other decision makers would be in-country, with confirmation next day. Never heard back, sent a follow up email and called. Finally got a reply from the MD on the Mon, via email, stating that he would call me Wed that same week, for Next Steps. Not heard back since. Have left Voice Messages and sent emails. Simply appalling and totally unprofessional. Hope this is not how they treat potential clients!