Please follow these steps inside the app:
1-Open the side menu, scroll down and select “Add a profile”.
2- Next, give the profile a name. This will create a "Category".
3-You will now see the option to "Add number" to this profile.
4- Select the “Country” and “Type” of number (Regular, Premium, Elite) that you’d like — then scroll down until you find one you’re happy with.
5- Click “Purchase”, then choose your subscription period, and follow the usual steps in the App Store or Google Play.