NO DELIVERIES!!! ****!!!

I ordered a book late October 2021, which never arrived. However after some exchange of emails, they assured me I'll receive the book within 10-15 days of working days. That was mid December 2021. It's now late April 2022 and still I have not received my book. They also didn't give me a tracking number which was very odd provided they claim to be largest book seller across the world. I believe they never sent it to begin with and it's all just a ****!!!