Third Year Student Awaiting textbook while assignments and Tests approach Fast

I made a order for a textbook for my studies on 27 February and made an immediate payment. After more than a week I called them on Friday 8 March to know what is the delay and I was promised that my Textbook would be delivered on Saturday 9 March. My Textbook was not delivered and on Monday 11 March I called them again and they again promised me that my textbook is on its way and that they are sorry for the inconvenience and they realised the textbook should have been delivered the previous week. Now after multiple phone calls I still havent received my 3rd year textbook after almost 2 weeks. I have send emails as well complaining and stating that I have an assignment that need to be done by the end of the week(week ending Sunday 17 March). The best part about this is the fact that I have received an email from Brightbooks to write a review on the product I have purchased although I havent received it yet.