Wrong order,bad service

In November 2018 I ordered a microwave which was delivered the first week of December only to find out it was not the microwave I ordered.The following day I called the call center and they advised that I should return the order at the post office.I went to the post office (next to Riverlea) and they said they can't take the box as it was too big.I called the call center again and they hold me that they will come and collect the box.Come January no one came to collect the box,I called again and was advised that the warehouse was closed,they will come and collect the microwave (That was the 8th of January 2018). 22 January still no collection and I called again only to find out that homechoice has been trying to call me as they can't come and collect the box and I have to return it at the post office,what was even worse was that my case or enquiry was closed,the lady advised that she will open the case again and they will contact me to find out which post office did not want to take the box.Till today still waiting for the call!!!.I mean what kind of service is this,I order something and they deliver the incorrect order because what I ordered was out of stock without even consulting me .Now I am inconvenienced and have to make callls with my phone just because homechoice decided to send me a microwave that I did not order.Secondly I have to run around with this big box to the post office.If the item gets damaged it will be my fault.I just want to get rid of this microwave and will never ever order from homechoice again,I am fed up with this service!!!!!