iPhone 4s 3G network settings.

[metso]

Hi up until today having paid for an update to my data plan, I don't seem to be able to connect to the Internet via 3G

Having researched the carriers specific manual settings, I cannot find within the iPhone where to put these settings

As I said earlier it was working and having run out of credit and buying some more all of a sudden I cannot surf.

When I go to settings/ general/ network all I see is data roaming: on
Personal hotspot: off
VPN: not connected
Wifi: off

Any help would be a massive help.
Thank you
Metso

The settings are below.

Maxis Mobile Internet 3G
Access point name : unet
Username :
Password :
Account name : Maxis 3G WAP
Proxy server address : 202.75.133.49
Proxy server port : 80
Homepage : http://m.maxis.com.my/

 

[Gav2k]

Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

Settings>general>network>mobile data network is where the apn settings go

 

[metso]

Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

Settings>general>network>mobile data network is where the apn settings go

Thank you
I don't have the option mobile data network for adding settings all I have is on or off
Thanks