Game refusing to give refund on a product bought 6days ago

The Game store manager Maria Khuzwayo at The Glen Shopping center refused us to return a product that has not been used, refusing to accept that we had a change of heart. She sighted "hygen" as the reason why this product cannot be returned and that the product is still on good working condition.

This is unacceptable because nowhere on their T&Cs does it say that working products can not be returned. Instead their T&Cs says that goods can be returned if there was a change of heart, as long as the goods are in original packaging and condition with a receipt.