NFRN retailers have been posted sheets of vouchers which can be redeemed in Booker and Makro branches against a range of Happy Shopper confectionery.
The buy one case, get another free promotion is exclusive to NFRN members. The vouchers are valid for collection only and can be redeemed up until 31 May.
NFRN national president Stuart Reddish said: “We are really excited to be working again with Booker on a scheme that will both save and make our members money.
“This is the single biggest giveaway that the NFRN and Booker have ever done.”