GESAUTOEGE154ML?V where ? = 2+2.
GESAUTO7VQMB?VBUU where ? = 1+1.
Got these codes from doing Pizza Hut feedback surveys. 1 free medium cheese pizza with any large pizza purchase. They cannot be used with other codes or vouchers.
Personal pan = 6 inches
Medium/medium pan = 9 inches
Large/large pan = 11 inches
So ignoring toppings preferences and going purely on size, a medium is ~67% of a large.
No idea if they're one or multi use. Probably the former since they were given privately in an email and are different as well.
As of posting, there are still 2 codes for 30% off large and 1 for free garlic bread with a large purchase.
https://www.ozbargain.com.au/deals/pizzahut.com.au
Might have a 3rd one to give away later.
Edit 09 December 2019:
One more: GESAUTOQWUXPQ?LEV where ? = 2+2.
I don’t go to Pizza Hut as my local Pizza Hut is not clean.
Thanks Anyway OP.