Paying for Item I haven't received

I am about to pay my instalment while the order was short delivered. Head Office and Salesperson completely ignoring my messages- Ticket Number *** for the complaint. Email sent 15.7.2025 after being ignored by SalesPerson who has since Blueticked Me:

Dear Bradlows,

I purchased 3 items on the 4. July 2025 (customer number ***) at Bradlows Festival Mall assisted by Salesperson Refilwe (***8). This was on a Friday. I must highlight that pre-visiting the shop, I had sent pictures of the desired items to the Salesperson to check availability- she confirmed that they were all available in store. I have this Salesperson's number because I have been previously assisted by her on other orders (that also had issues). After the purchase, I waited at the shop so that I could personally take home the smaller items, instead of waiting for the delivery since she has said that they were available instore. A few minutes later, I was told to leave as they couldn't find 1 item and would deliver all items the following week. On Monday 7th July 2025, 2 of 3 items were delivered by the driver, I asked him why only 2 items were delivered, he mentioned that it was all that he was assigned to deliver. I then followed up with the SalesPerson as to why only 2/3 items were delivered, she apologized and mentioned that she should have told me. It has been days- the item has not been delivered, she said that she had received it last week Tuesday (8 July 2025), it is still not with me. The instalment is due on the 24th - while stock hasn't been received. She doesn't call me proactively; she responds to me with empty promises. I am highly disappointed. I have evidence of all my communication with her. I have also attached my PO and slip. I bring this to your attention because it is not the first time I’m having issues with this store served by the same person.

I only require my goods to be delivered.