We email you your order ID when you place an order with us, and again when your order is completed.
The two emails you should look for that contain your order ID are the Order Received email and Order Completed email.
In both emails your order ID will be next to your Instagram profile picture.
Please see the image below:
If you still cannot find your order ID please feel free to contact us and request it. Please make sure you contact us from the same email address you used to place an order.