Spend $X each week for 3 weeks to collect 1,000 then 2,000 then 3,000 points respectively; after activating offer. Unlike Woolworths you need to make prior week's shop to unlock that week's bonus (not clear about missing out on week 1 and having access to week 3 if you make required spend in week 2).
E.g. spend $30, $80, etc.
There might be additional bonus if all shops done online.
Looks like a change in format or addition offer structure for Coles.
I got this offer, but with a bonus 3000 points if I complete the shops online (1000 per shop).