Hi all,
I'm finishing off booking an itinerary in June, but my TA is calling a problem with the last segment. I can't see what it could be, and Mileage Monkey thinks it's OK too.

The itinerary is
SYD-JFK-SEA-DFW-ORD-MIA-DFW-SFO-LHR-SIN-HKG-BNE-("stopover" until August)-ADL-("stopover" 3 days)-PER-MEL-BNE

They say I can't have the final MEL-BNE, and I can't see what the problem is.
Aren't I allowed 2 stopovers and four segments in Australia?
I had to take the HKG-BNE as no availability to other ports in "D" class, so will arrange the initial BNE-SYD as a separate ticket, and I understand that I can end at a different point to the start, can't I?
Thanks.