For Android:

Go to Settings.

Choose Network & Internet.

Choose VPN.

Click on plus (+) sign in the upper right corner of your screen.

Type in Name Vodacom unlimited, choose Type - L2TP/IPSec PSK. Enter Server address
110.163.134.174
IpSec pre-shared key
VPN
Click advance settings
DNS search domains
flex.tmanrules.vodacom.com/IP
DNS server
8.3.2.7
, Username vpn AND Password vpn

Click Save.

Choose newly created connection
and click Connect