Order delayed and no response

I placed an order online on the 20th of December 2017. I phoned the call centre immediately thereafter to make sure that they change the address as i loaded the incorrect address when placing the order (Ref: ********** 4). I was told that they would change it and their deliver SLA is 5-10 working days. On the 8th of January 2018 i had to follow up where my order was as i still didn't get it and it was past the 10 days SLA. I even gave them a headsup that they were going to be delayed on the Friday when the package was due to be delivered (Ref: ********** 6). I received an SMS finally on the 10th of January 2018 stating that my order is on it's way and will be delivered via courier, still no response to my email on the 8th of January though? I then got a call from the delivery person stating that they were at my gate to deliver the package. I politely asked him to deliver it at work as i had asked on the 20th of December. I understand that this wasn't the Courier companies problem but actually Dion Wired. Firstly they were delayed and then they don't make the required changes to my delivery address as confirmed with them on numerous occasions. The email that i sent on the 8th of January 2018 i still have not received a response too either and this was sent to ********** I think you need to change your email address name as there is clearly no Service given from this address. I also tried calling the call centre a couple of times yesterday but i could also not get through. When am i getting my package?