Sirena Tuna 5 x 95g packs for $5. As of 7.30pm there were around 1400 Italian Style and 200 Chili Flavoured cans only. I'm not sure when the deal began or ends or if it's store specific. There were no signs indicating maximum quantities allowed. I purchased 60 myself.
Edit: As of 8am 8/6/16 there were approximately 12480 ( 208 boxes x 60 ) cans of the Italian style only. Sale till' stocks last.
Did you stand there and count the 1,600 tins?