VI gave me 1GB/day free for a week..

Both of my sims are VI..I usually recharge only one sim regularly and use 2nd as my secondary sim..I hadn't recharged my 2nd sim since a month.. Suddenly, VI gave me 1GB/day free for a week..Also, this is not the first time I am getting such benefits from VI..This is 3rd or 4th time in the last one year..Thanks Vodafone idea👍