[Resolved]  Vodafone India — obnoxious charges for 10 days o[censored]sage pre mnp

I have been using vodafone services for the past 4 years on a monthly plan of rs499.00
Because of their poor network in bangalore, i had to shift to airtel (Mobile no portability)

Post 2 denials vodafone approved my mnp request and i have paid in advance for that month.

Now, they are charging rs1200/- for 10 days o[censored]sage.

I am ready to pay 499 but not 1200 for 10 days.

Vodafone has summoned me. (Yet to receive the same)

Need a clarification from
Vodafone with details.