Bad service viva shop kroondal north west

last night i went into the viva shop to buy me a cooldrink as i walked out i realised its the wrong brand so i return into the shop to change it for another brand, they response to me was there can change the flavour but not the brand i was shocked by this because it was the first time i heard something like this. i left the cooldrink behind as i refused to take it with me

this incident occurred at the viva shop kroondal north west