50% Discount on the Airalo 10Gb 30day Japan eSim, so now $9.00 USD or around A$13.70. Deal expires in the new year.
Used these esims on a recent trip, decent speeds and coverage was fine but we were in main tourist areas only.
Remember to check for phone compatibility.
Update from comments - Try JAN15 (New customers) and JAN10 (Existing customers) for extra discount. Also remember to use referral for extra USD$3 off if new user and cashrewards! Referral savings is probably better than the codes if they don't stack.
It mentions that the 30D starts from the initial activation, how long do you have to activate? Have a Japan trip in March, so thinking this might work well?