Cadbury Competition / Engen redeem

<p>Cadbury is currently running a promotion where you buy 4 marked chocolates and you enter the unique code to redeem a Martian figurine. The figurine can only be redeemed as per the web page. I bought my slabs from Spar and then enter the codes and received my redemption code. I went to the Engen quickshop and tried to redeem my Martion figurine and the staff refused to give it to me as i did not buy the slabs in the quick shop. The rules do not specify that it has to be bought at engen. Why would all other retailers then sell the marked slabs. Engen quick shop is R5 more per slab as well so why would i want to buy it from there.</p>