Grossly and unrealistic overpriced item

ordered Vimto soft drinks and paid R 385 and received a small carton containing 1 can only, on enquiry they said it was correct and keep insisting that is right, all other imported cold drinks like Fanta, coke from other suppliers are R 360 per case of 24 cans. sweet & soda sell vimto at R 20 a can which is a bit expensive. how can R 385 for a can of soft drink be right ?