Shocking service from Takealot

I am horrified by the "service" I have received from Takealot. I placed an order of books for Christmas presents in mid-November. I specifically ordered early to ensure I would get them by Christmas. I received an sms unexpectedly one morning that my order would be delivered that day - unfortunately, I was out for a couple of hours first thing in the morning and the delivery must have come then. The same thing apparently happened the next day when I was 5 minutes from home and could have returned to get the delivery, but no one contacted me or let me know what was happening. After trying to find a way to contact Takealot (they have no number on their website or email address and all emails they send you, are automatic and you cannot reply to them) I eventually managed to find an option to change the delivery date, so changed it to the Monday when I would be home all day. I received an sms confirming this. However, on the Sunday I suddenly had a flood of emails cancelling every item in my order and telling me that due to failed delivery, it had been cancelled. I eventually found a number for Takealot on a different site (nothing to do with Takelot) and phoned them. The customer service person said she would reinstate my order for me, as it was literally sitting at a depot 10 minutes from me and it would be delivered the next day. She emailed me to this effect, but I grew suspicious when I had no sms confirmation about the delivery, so Monday morning I phoned back again and was told that the previous assistant was wrong and she could not undo the cancellation. My package had been taken apart and the items were already being put into other orders, so I had to start all over again. This person promised to do a replacement order for me of all the items and she emailed me to that effect as well. However, she then stopped responding to me emails back to her and so I phoned again two days after speaking to her. A new person told me that the previous consultant had done nothing, but she would replace my order with a new order. She sent me an email and then never responded and I was passed onto the next person, who finally confirmed my replacement order - however, everything would now only arrive after Christmas and instead of the collection option, which I had specifically and repeatedly requested to prevent the possibility of missing the delivery again, they had scheduled another delivery. All attempts to get someone to respond via email and correct this have failed. I have however had a message via Facebook Messenger saying that if I wanted to change to collection, I would have to collect not at the local depot, but an hour away in town! I am absolutely infuriated by the complete incompetence and inability to communicate and follow up from Takealot. It is the most ridiculous consumer-unfriendly organisation I have ever come across.