WhatsApp trick: Avoid unwanted messages! How to block someone from adding you to a group
While there is no doubt that WhatsApp Groups are a blessing, allowing families and friends to stay together and communicate with ease. Yet, they can also be annoying at times, a problem WhatsApp is trying to deal with. These groups serve as the perfect place for spreading misinformation.
There is a WhatsApp trick using which you can stop someone from adding you to a group. Source -