Game online order

On the 27 November 2022 I bought four (4)items at game online. Only (3) items where delivered (02 Dec 2022) its even written on top of items 1-3 to 3-3. So one items not delivered. I called immediately on the 3rd Dec 2022 got reference number told will get back to me I'm still waiting till today (12 Dec 2022), I then sended a message on Facebook messenger(07 December 2022) was given feedback it will be attend to it agent is assigned. I'm still waiting no feedback. I've been calling no answer. I'm very disappointed with the service I'm getting.