You are going to be redirected to the official website to finish the download when you click these buttons above.
You can contact customer service via the app's settings or by visiting the official website for support options.
The customer number is usually listed in the app under the help or support section.
Open the app and tap on the login option, then enter your credentials or connect via Facebook/Google.
Typically, account activation is automatic upon login, but check your email for a verification link if needed.