Understanding the reason for your refusal is important before considering a re-application.
A case file (GCMS Notes) is a detailed immigration document with information regarding your application, it includes personal notes on the reason for your refusal by the immigration officer. This is different from the refusal letter you received and provides more information.
Do not re-apply blindly! This service helps you get to the root of your refusal and helps you strategically position yourself for a higher chance of approval in your re-application.