Very disappointed in takealot's slipping standards

I used to always enjoy shopping on takealot. Some of my recent orders have been very problematic. 2 took ages to come and the last one took the cake as far as shocking service goes. I order and pay for an item on the 7th of August and on the 21st of August literally a day or 2 before the items long awaited arrival takealot send me an email to say my order has been cancelled due to a lack of stock and that I would be refunded. I'M FURIOUS why did it take 3 weeks to discover that there was no stock. This is very poor service. Honestly I'm very off takealot their standards have dropped dramatically. I'm very disappointed