Not happy

Hello purchased a product at Leroy Merlin online. Waited for the product for a long time after giving them a chance to dispatch back the product since their courier sent it back to them. They told me they don't have the product. It's fine then I asked them for a refund they told me it would take 7 - 10 days no refund has been made yet after those days has passed by. When I check with them they told me that they will start with the refund again it would take 7 - 10 days. I am not happy with this service because I didn't get my product now I am struggling with the refund for order it's for Thabang Tau