Open the chat of the person you want to unblock
Tap on unblock option located at the bottom of the screen
In case if that option is not available to the users then tap on the three dots on the top right corner of the screen
Tap on unblock option from the menu
Tap on unblock option located at the bottom of the screen
In case if that option is not available to the users then tap on the three dots on the top right corner of the screen
Tap on unblock option from the menu
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