If you haven't received confirmation by now, the order failed at some stage.  You'll need to contact Dell for details. You might also contact your credit card provider, since payment or address issues are the most common cause of orders failing.  
Hello, I haven't received a confirmation email yet for my new Dell G3 15 3500 I purchased on the 23rd of this month. I did receive an email that Dell has received my order. Is this normal? Is there any way to know the status of my order?Thanks and have a nice day
Haven't received order confirmation yet