These emails are perfectly designed by hackers to trick the users clicking on it and to get payment card information.
Also Read Kali Handbook for Ethical hackers
WhatsApp uses to request payment before but that all stopped in January 2016, Which makes the scam somewhat more acceptable is that in the past WhatsApp did use to ask users to pay a fee after they had used the service for over a year.
So, don’t be duped into clicking on suspicious links claiming to come from WhatsApp suggesting you need to pay your subscription to continue to use the app. It’s not just nonsense, it’s potentially dangerous nonsense that could leave a hole in your wallet. Says GrahamCuley in the blog post on Eset blog.
Beware of unsolicited SMS text messages claiming to come from WhatsApp demanding that you verify your account and buy a WhatsApp subscription.
Be careful with spontaneous SMS instant messages claiming to originate from WhatsApp requesting that you confirm your record and purchase a WhatsApp subscription.
You ultimately decide what links you click on, and whether you hand over your passwords and payment card details. Always think twice, because the wrong decision could prove costly. Says GrahamCuley.