Shocking retuns policy on books

I ordered a Field Guide book for my son's birthday only to find out that my son was given the same book as a gift a few days before. I requested a credit same day as book received. Takealot refuses point blank to credit my account as they say that it is against their policy to credit books. A person should be advised of this non return policy for books when ordering the book. I feel that this is very unfair as I have no need for the book myself. Other book stores will give you a credit if you return the book in same condition as received. This is the first and last time that I will have any dealings with Takealot.