JIO trick to get @399 1.5GB for 84 days and 2GB/day for 84 days @444 (Till april 2020)

Here is step by step process to get this benefit,

step1: Go to www.jio.com
step2: Login to your account.
step3: After successfully login go to setting and choose "tariff protection"
step4: Here you will see all the hidden previous plans
step5: Choose your plan and click buy.