I recently had to order some text books through Amazon books . They had the best prices anywhere online . Text books can get really expensive so it 's nice if you can get a $ 20 or $ 30 discount .

Choices: i. None of the above choices . ii. Amazon did not apply the discount so the textbooks were full price . iii. They never received the textbooks they paid for . iv. Amazon refunded their money because they did not have the textbooks .
Answer the following question: What happened after they placed an order ?
i.