How to block unknown number on whatsapp

- How to block unknown number on whatsapp without opening the message
- How to block unknown number on whatsapp iphone
- How to block unknown number calls on whatsapp
- How to block unknown number messages on whatsapp
- How to block all unknown number on whatsapp
- How to block any unknown number on whatsapp
- How to block unknown number from messaging you on whatsapp
- How do i block unknown number on whatsapp
- How can i block unknown number on whatsapp