You will be needing your DS-160 Application ID on this next step.
First, Log-in on this website:
Create an Account as a New User.
On the homepage, click on “New Application/Schedule Appointment” tab.
Click on the Visa Type you are applying.
Continue by answering the questions.
Fill up with your information. Note: If you are going on the interview with another person, only you have to create an account here. Just input his name on add participant tab and enter his/her DS-160 Application ID.
After filling up all necessary information, you will arrive on this page. You are now ready to pay for the Visa fee. Print this page with the barcode and proceed to any 7-11 stores.
Payment can be made at any 7-11 stores in Macau and Hong Kong. Simply present the MRV Fee Payment paper you printed and pay for the amount. The visa fee is amounting to MOP/HKD1280. Make sure to get the receipt upon payment.