Arihant Books — Worst service- Book not delivered

I ordered a book on 8TH MAY to prepare for my exam. They sent order confirmation and the book has been dispatched VERY FAST on 20TH MAY. I dunno where is my book now. customer service lady says that it has been sent thru India Post. But my area post office mam said that no parcel is received. I am getting irritated. My exam is nearing. waste of ordering that book. I paid thru online. 591 rs is a big amount of loss for middle class ppl like me. Poor customer service. A lady picks my call and she ll talk like A sluggish fellow. No response to my n number of mails. Who is paying salary for these ppl who does not know to serve the customers?? better arihant books should close their online portal. Stop cheating the poor ppl.I was shocked to see lot of complaints regarding arihant books delivery. I should have reviewed about this portal before buying. but I ordered in an urgency. I need either my book or money. More over I need justice in this democratic country.