confirmed order with late cancellation

Besides not keeping up with the promised delivery. I ordered Cambridge school book and paid on the 13th December. The order was over R1600! First cancellation shortly after ... reordered with Loot for R100 more. The book btw, is still available on the website. Today 28 December, another two books are cancelled. Account right away credited, yet the books still available online /??? If I reorder with Loot, the difference will be R241 more!!! Now the delivery date is 29th January 2018. Will have a guarantee that the order will not be cancelled again?? This was certainly the last time I am ordering with takealot.