First of all, select a suitable plan. To do this, go to the section "Tariffs" on the official website Megaphone at www.megafon.ru and select the rate taking into account the features of your mobile communication.
After you have picked up the rate, go to online self service system "Service-Guide" in section "Maintenance". To receive the password to access the system, dial your phone with the command *105*00# and press the call key. In response you will receive an SMS with a password. Enter the phone number and password and sign in "Service Guide", where you can change your current tariff to a new one.
Also to change a tariff plan you can contact customer service of the Megaphone. Please call with your mobile phone or 0500 number from a landline phone at number 55 502 00 and inform the operator about his desire to change the tariff. The cost of changing the tariff via an operator Subscription service is 30R. VAT.