Not the best online electronic shop

I am extremely disappointed by the service provided by rentoza. I placed and paid for an order on the 28. 11.2024 and till now I have not received my item. After the verification and approval of contract, I was told to wait 14 working days for my item. This week I was told that they do not have stock of my item, and I should select a new item,of which I did and now I'm being told that I will have a new ETA for the delivery of my product? Does that mean I now have to wait another 14 days if so that will be without my item for an entire month, bear in my I have already paid for it. I demand that I received my item by next Tuesday. On original order I was informed that a waybill will be issued on the 27.12.2024 I am expecting the same