Sales enquiries and support both go to contact@radianbi.com.au.
Email contact@radianbi.com.au and say which product you are interested in. If you want a demo, add a couple of times that suit. Demos run online and take about 45 minutes.
Email contact@radianbi.com.au with your firm, the product, what you were doing and what happened. A screenshot helps. Firms with a support agreement have the response times set out in that agreement.