Buco Giyani is not willing to deliver goods I have paid for

Good day, I have bought 4000 bricks from Buco Giyani on the 15th of December and was assisted by Lizah Hatlane. Initially delivery was suppose to be less than a week. On the 19th of December I went back and queried about delivery and I was told that a week has not passed and I later decided to cancel delivery and collect 928 bricks myself. On the same day I bought 1000 more bricks with delivery and said I am willing to wait for a week for which now it would be 4072 bricks. All of these bricks have not been delivered and I went to the store again today 3 January 2024 and I am told that they have a lot of customers who wants delivery. There is no sense of urgency in this store, instead of telling customers the truth they wait until you pay then they tell you that they can not deliver.