Pathetic service.. Extremely pathetic

I have ordered PS on the 9th of Dec 2020. Delivery date 30 Dec 2020. Not delivered. Another delivery promise of 15 Jan 2021.Not delivered. Requested refund on 15 Jan 2021..Today is 26 Jan still no refund... Still struggling to get my cash back. THING TWICE BEFORE YOU BUY ANYTHING FROM Mr shopper