Bad service and bad communication.

Their services is very bad. They deliver broken glasses and want to blame it customers because they want to refund you your full money. I have an audio of the lady in the office that they sent to the driver confirming that they put in the broken glasses by mistake. My question where was I supposed to get other glasses after paying them. Their communication is horrible. I'm being told i will get my refund on after 30 days. Which is wrong because according to According to South African consumer law (CPA), a supplier is required to refund a consumer within 15 business days.