Poor Service and missing items

Ordered multiple items from Takealot. All items showed available and in stock. paid in Full. Order showed as shipped via online portal of Takealot. Order arrived and on checking only found a single item packed in (there should have been several items). I contacted Takealot via their very poor online issue system (took me ages to find a link to use - returns are easy, missing items from order, not so easy) and got no response - then I called them (note - the call center number not very visible on web site) and a very pleasant call agent assisted me and said they would get to the bottom of the issue (well done here - that's the 2 star rating). Since then I have received a few emails and the service agents say replacement items are being shipped soon (but also now they say the one item is out of stock / no longer available as well! - even disappeared from the web site) , but each agent contacted does not answer my original question asked - "What happened to the original items that showed as in stock and shipped"? where did these disappear to? - still waiting......