The dairy brand's "Make a Moo" scheme runs from 5 May to January next year. Anchor customers will receive "O" tokens which can then be added to a Make a Moo card for prizes.
Rewards will depend on the length of the "Moo" on the card. The scheme will also run offline, with registering customers receiving a free token.
The campaign will be supported by TV, press and experiential activity. Customers will also receive an Anchor-branded "I'm shopping ... naturally" bag-for-life.