Pathetic service

On 15 January 2023 I ordered a few items from takealot, 1 being a calculator for my son. The expected date of delivery was 19 January, and I still haven't received delivery, and it's almost 10 days since I placed the order. I just checked and delivery is now scheduled for 26 January as 1 item on the list is not in stock. They do not have the courtesy to inform me about the issues and in the meantime my son is waiting for the calculator which he urgently needs for school. I will never order from takealot again. I have paid for these items upfront and they can decide when to deliver.