How to get whatsapp free for life time

In this method we must have an Android OS mobile, A iOS device and
WhatsApp.

PROCEDURES:

1- First you have to Install WhatsApp on both devices(Android and IOS).
2- Then you have to uninstall WhatsApp from the mobile(android device)
  and also from iOS device.
3- Then you have to Download WhatsApp on just your iOS device.
4- Then you Install WhatsApp and check whether it has or has not 10 years
 subscription .
5- Then you have to Verify it with your mobile number(android device number).
6- Then Delete WhatsApp in iOS device.
7- Then download the WhatsApp for mobile for free life te gurentee (android device) or black berry etc..