28 days is trick to get 1month extra in a year.(which all operators now employ)
People think 28days is almost a month but over 12 months it takes out FULL MONTH!!
12 x 28 = 336!!!
A year is 365 days.
But at end of 12 recharges, u got only 336 days!!
So 29 days short!!
So you have to do 1 recharge extra!!! (in a year)
People think they do 12 recharges in a year but they actually do 13 recharges in a year!!!