Consumer Redressal

Sir/Madam, I Ms Yojana Rawle am using vodafone postpaid service from OCT 2009.Till last month I was using a 2GB plan with 2G speed for Rs.199.But on 17th Sept 2013,I received call from voda about an offer for my data plan.The voda rep offered me a 2GB plan with 3G speed for Rs.225.On asking what is the offer he informed that the 2GB plan with 3G speed is for Rs.450 and I am getting a 50% discount on it. And once i chose to change my plan it will be effective from the start of my billing cycle which is 18th of the month.This is all the info he gave.So I agreed to change my data plan as the new plan was just Rs.25 extra. Today on 27th Sept 2013 when I called cust service as my internet service was giving problems, but voda rep told me that this offer is only for 2 months and I will be charged Rs.450 after 2 months.I am a working and had to spend almost an hr of my office time calling voda for solution but 2 reps hung up on me. Kindly look into this. Thanks & Regards, Yojana Rawle