Vodafone India — change billing plan according to my uses of my cell no. [protected]

Address:

401107

I am your very old customer and my sin no. Is [protected], every month my bill is coming very high as compared to my uses. Many times i have visited to your gallery to change the plan but, every time they are saying please mail to our corporate email ed. But no one is responding me proper. This is my last request i am doing with you to change my plan according to my uses. I m also requesting you to cancel my international roaming as soon as posible. Kindly do the needful.