If you are already registered with SocioMee then it is not possible to get it replaced. However, you can add your other number and to do this you have to click on the menu— then click on the settings option— then to account— and to personal information. At the bottom, you will get a new section named “my contacts” where you need to click on edit and then there is a section named “add contacts”. By clicking on the add contacts you can add your new number that will be visible to your profile. But remember that number cannot be used for your login process since you have already used another number in the beginning and it cannot be replaced.