I'm not sure if this really counts as a "deal" per se, so remove if necessary, but the government's online portal for ordering RAT kits is now up.
Answer the questions, provide your phone number and address, and you'll be given an order code which you can then show at a collection point to receive your RATs.
One order per household (I'm not sure how repeats are handled).
In Wainuiomata the code almost didn't work - my dad almost got turned away because he wasn't a household contact and the code system isn't working. He was getting them for my brother, who tested positive immediately.