This happens whenever you go to https://shop.angel.com/ and add items to your cart. If you do not complete that order, the system will send you an email to remind you that you have items in your cart.
You can either clear the items from your cart or complete your order to stop getting these reminder emails.
Customer replies to these automated emails are not monitored, if you are still having trouble with the reminder email please reach out to our support team here.