How to change the internet settings?

I have an iphone and i have got 02 internet settings on my phone, i've recently changed to a different network called giffgaff and they would normally text me the internet settings but it hasn't come through so is there a number that i can text?

Here I provide some information to change your the internet settings:

1. On the menu at the top of the Internet Explorer window, click on: Tools

2. Choose: Internet Options.

3. You will open into a box with 7 tabs across the top. The first is called General. That's the one you should be on.

4. Click on the Settings button, under Temporary Internet Files

5. Under "Check for newer versions of stored pages," click on the circle by Every visit to the page.

6. Further down this window, look for "Amount of disk space to use." This is asking how much memory to set aside for saving things such as how many modules you have completed. Use at least 50 MB (megabytes) here. If you have more, don't change it.

7. Click on the OK button on this Settings window.

8. Click on the OK button to exit out of Internet Options.