[Resolved]  Vodafone — Wrong Tariff Plan Charged

I am using Vodafone connection and recently I ahve changed my tariff plan from vodafone family plan to vodafone group talk 165 having monthly rental of Rs.165
I was surprised when I received a bill they have changed my plan from family paln to group talk 250 with monthly rental of Rs250. I had compalined regarding the same to their call centre but inspite of that they have not reverted back to me on the issue. Every day they ask me to wait another 24 hours for reply and their 24 hours never ends