Online shopping (third party supplier) item missing

I purchased a 3 in 1 printer online. It was delivered on the 19/04/2021. The box was opened the same day, the starter cartridge was not inside. I called the customer care line immediately. I was advised that they will contact the supplier and get back to me. I did not receive any communication from them. I kept calling in and was told my query is being escalated. After a week, I called in again and was told that they see on the system that they are waiting for the courier company to pick up the starter cartridge and it will be delivered to me. I waited another week and called again, after not receiving it. I was told the usual response, “the query has been escalated”. Nothing was being done. Since it has been over two weeks and the printer is still sitting in the box, I asked that the item be returned and I will go into a store and purchase a printer where I can personally check that everything that is supposed to be in the box, is there. I was told to log a return online. That I can not do it over the phone. I kept trying to do it online but it would not go through. I called in again, a different consultant was able to log the return request for me. I then received an email which is the only communication I have received from Makro, asking for pics and again the reason for the return. I sent numerous emails with the pics and the reason. I eventually received one email stating that the return request will be escalated. Then no further communication. I called in again today, 06/05/21, and was told the usual, “the query has been escalated”. I do most of my shopping online through Makro and this is the first time I have had such bad service. I feel I have been patient long enough. I no longer want this printer nor do I want to deal with the supplier. But I am unable to get this issue resolved.