To block a user and limit their interactions, please follow the steps below:

1. Open the PLINK application: Launch the PLINK app on your device.
2. Access the user's profile: Locate the profile of the user you wish to block.
3. Block the user: Once you are on the user's profile, navigate to the 3-dots icon on the top-right corner and find "Block user" option. Tap on this option to initiate the blocking process.