Cambridge International AS and A Level Chemistry Third edition Coursebook with Cambridge Elevate Edi

The book was received on time, in good condition BUT many pages are missing. The child will come to know only when they are studing for particular chapter and notices, there are more then 5 pages missing. By than, the return date is gone too. Now don't know what one should do... it is too costly to reorder.Can anybody help in this?

The media could not be loaded.