bad smell in OK Foods Fridges

Please go check out the OK Foods store in Maitland, Cape Town. i have been into the store a couple of times and their fridges smell like relay bad. it almost like dead insects especially by the water section. this is really disgusting. i have mentioned it to the staff member on the floor today at around 12:35 and gave me some attitude not to approach her. Who must i then report this to? i will never ever set foot into that store agian.