For most parcels a further 1% discount with no further discount for rural or international.

Compared to Sendle which I do not use they had a flat rate offer of $4.95 per parcel up to 5kg for your first 100 parcels for one month.  I was tempted as 100 x $3-$4 average saving was substantial. Then starting in July a discount for those who send 160 per 8 weeks.