Unlawful policy by Norkem Hardware. No refund policy

I will never buy from this shop again. I bought an item for plumbing because my pipe was leaking. The guy who was assisting us said we can return it if it doesn't fit. I brought back the item and I was told about no refund policy, only exchange. This is unlawful, every retailer must operate within the confines of the consumer protection act. I would like to warn people to stop supporting this small hardwares which don't value your support. Buy from places like builders warehouse where they value your support and respect the laws of this country