You can change your Minutizer Username to match your new Skype ID. 

To do that, please go to your Minutizer account, and in Settings -> Account, you should find Username. Click Change.

If you don't know the Username you can find it by clicking on "Find Username" (this option will appear after clicking "Change") and filling in your e-mail address.

Enter the new Skype ID* you have, and then click the " Save Changes " Button.

*Important: Make sure that the Skype ID already exists and it belongs to you!

The Username will not be changed automatically due to verification of existence & ownership.