online refunds biggist rippoff

I bought a dash camera online. When i received it , it was a manufacturer defect. The bracket would not fit into the monitor. I took it to Makro Crown Mines requesting assistance. They found it to be dective but could not accept it because it was bought online. I requested to return the product and requested a refund. A staff member contacted me and reassure me that they will collect the item and refund me. It is 5 days now and the item has not been collected. I received an email from Makro stating that the item does not qualify for returns. This implies that Makro a can sell defective items and wont honor return policy