Kids Emporium pathetic after sales support

Bought an Aqua Scale Childs bath from the Umhlanga store a month ago. After a few uses the scale function stopped working. Kids Emporium refuses to swap it for a working unit, according to the manager the "Bath is water damaged" and they have no recourse with the supplier and will not take any action, claims I should have bought a more expensive Stokke unit. This is in breach of the consumer protection act, and poor customer service from a store that should be differentiating to compete with the larger stores. Unfortunate really.