Shopeyard.com — regarding cancellation of order

Address:

Aarudra study hall, Opposite Raghavendra tiffins near Telugu Academy , Himayat nagar, Hyderabad, Andhra Pradesh, 500029

I order a book from shopeyard site on friday, i was trying to contact them through their customer support services like whats app and mail details.
They never responded not yet almost 5 days completed (once respond through whatsapp and says there working hours between monday to friday ) thats only reply from there end. This was crucitial time for me for mains regarding that subject material. Now am irritated with there response and care now i want to take other book from other market. Finally i want to cancel my order return my money to my account.