Enter your mobile phone number (for example: 447921234567), which can be used to contact the administrator to prove that it is your account. Making sure that the well-entered. + Does not need, and the country code necessary (UK 44, if you enter his place of 0, will be badly entered). The phone number will not see other players, only you. Phone number you can change, if it has been introduced (Account settings - Change phone number with SMP code).