Roosville spar is taking chances.

Can someone please explain the logic behind this price jack? All the spar purr-fect wet cat food tins is priced at R15.99. (400g) But the price for the Tina in water purr-fect wet cat food tin is priced at R33.99. Now I ask were is the logic in the price hike. All the other tins was sold out, except the expensive cans. We were at Delarey spar before the new year and there all the cans was marked at the same price. Out spar here in Sannieshof take a lot of chances and expect us to just keep quiet and pay there prices.