TAKEALOT JUST TAKES YOUR MONEY

I purchased all of my UNISA textbooks through Takealot, which I received last week Thursday 14 Jan 2016. Today (Monday 18 Jan 2016) I found out that one of the lecturers posted the incorrect textbook information. As a result, I have now purchased 2 incorrect books. I called the call centre to see if I may return these books for a credit and would then use the credit to buy the correct books, and I was told Takealot does not accept the return of books. i have proof that the purchase of incorrect textbooks was not due to my negligence, and this has happened to many students taking the same subject as myself. So what happened to my right as a consumer to return or exchange something that is still in its original condition, with receipt of payment, within 7 days of purchase according to the Consumer Protection Act? Takelot is actually such an appropriate name. You sure TAKE A LOT without giving anything back.