As I logged into my MyVodafone account yesterday, I saw that Vodafone has automatically changed call rates in my tariff plan from 30p/min to 50 p/min (more than 50% increase) without any notification or my consent from 27 Feb 2013 (They have changed all postpaid plans by increasing local call rates to 50p/min for all plans). After I called the customer care, they didn't had any answer and informed me that Vodafone sent a message to me on 7th Nov last year, and refused to register a complaint for same. My question is: 1. Can Vodafone change the plan without my consent, as I understand, plan is an agreemnet between company and customer, and it can't be changed by company? I have already sent a mail to Delhi Nodal officer, but no response yet.