Connecting the service ("MTS" it is called "Promised payment"can be with the help of service "Mobile assistant" is the number 111123. In addition, you can also dial *111*123#. To activate the "confidential payment" service, please contact customer service(room 1113) or typing on the keyboard command *111*32#.
Do not forget that the size of the "Promised payment" will depend on how much you spend per month on payment of communication services(for example, if you spend about 300 rubles, you will see a payment of 200 rubles). The General validity of this option is 7 days. Once it expires, the payment amount will be automatically deducted from your account.
After activation of payment you can check your balance inquiry dial *100#.