Makro is useless

Makro service is shocking i ordered a text book. i was supposed to get delivery on 6 March. Since then i have made numerous calls to them and to the courier company and to date no feedback. Makro call centre is very unhelpful and why should i phone their courier company. i have asked them to just cancel my order and refund me. i am at my wits end as i dont know how to get my money back. dont deal with makro guys the courier service is terrible and Makro is even worse.