Each module is designed to help individuals demonstrate important skills. Each person will create some kind of digital final product that shows them demonstrating their knowledge and skills. Your team leader/coordinator will review your final products, and if they are sufficient, will provide you with a digital badge endorsed by NCBCE. There are five badges, one for each module, and a sixth overarching Digital Ambassador badge.
You should feel proud when you earn a badge. Again, you won't earn a badge simply by passing a test. You have to demonstrate that you deserve the badge. The digital product you create will serve as evidence that you have earned the badge. Many of the final products will be things you can use again in your work as a Digital Ambassador.
If your teacher/coordinator determines that you need to improve your final project to show your full set of skills, you can resubmit it. Your teacher/coordinator should give you advice on how to improve your product to demonstrate the intended skills. There is no limit to how many times you can submit your final product, but your teacher/coordinator may set a limit. That's their prerogative.