Frustrated and Disappointed Customer

Hello. I placed an online order for a laptop on 28 February expecting my delivery in 2-5 Days. Meaning by 7 March at the latest. On 6 March I got an email to say the laptop was delivered. I called the call centre both Aramex and Incredible connection to say I did not receive the laptop. Complaint lodged. I called the call centre numerous times only to hear the request is being escalted and I will receive my delivery in a day. I want a refund now and expect that it will be paid into my account within 24 hours as this is pathetic service and a possible attempt at theft at my expense.