Orders get canceled because of following reasons:
Cancelation from customer side.
Product is out of stock.
System recognizes it as a fraud order.
If you are already registered on any of igo store programs, you cannot make another ID using the same email address/phone number for D-Force
If you make fraudulent orders, your ID will be blocked automatically.
Yes, it is essential that you first educate your customer and tell them how to place the order, how to change the order, and how to return it as well. You have to guide them properly because the better you guide and convince them, the greater is the chance of them making a purchase from igo store