DOTEL/R/E/21/00373

DOTEL/R/E/21/00373
Request :

Dear Team, I want know that in india our telecom companies are giving us 28 days validity instead of 30 days per month. Due to this we have to pay money for 13 month per year. As per me it is not ethical. I want to know that is there any particular reason to make 28days month? And if there is particular reason then why it is not implemented to all place where we are counting 30days per month?