without any info, my guess on a 2.4 not starting and no faults is a faulty crankshaft position sensor, its a common failure on a 2.4
Ford part number:287Q-6C315-AC
can be purchased from Jefferson Ford in Victoria, either their website or cheaper from their ebay site.
but dont take that as gospel as there are plenty more reasons why a Defender TDCi wont start.

