Go to iOS Settings and then tap General.
Tap VPN & Device Management.
Tap VPN.
Tap Add VPN Configuration…
Enter the following settings:
Type: L2TP
Description: (any name would do)
Server: se-sto.pvdata.host
*you'll find the server list here.
Account: (your PrivateVPN registered email address)
RSA SecurID: Off
Password: (your password)
Secret: privatvpn
*without the 'e'.
Send All Traffic: On
Proxy: Off
Tap Done.
Toggle to connect.