On the top of your mobile main menu, you can see: your mobile phone number, your current profile picture and your current Moneymailme wallet balance.
You can never change the mobile phone number associated with your account. A new mobile phone number means a new Moneymailme user.
In order to change the profile picture, go to My Account menu, press on the profile icon and select one of the two options:
Option 1: Take Photo - which will open your mobile Camera application. After photo is taken, you can readjust it before finally uploading it.
Option 2: Choose from Gallery - which will open your mobile Gallery application. After photo is taken, you can readjust it before finally uploading it.
In order to change your wallet balance, see Deposit section.