Hi,
To get Safari working, only for Safari (as far as I know).
Further to my update on Saturday I have again been in touch with Apple Support.
This is what cured my Safari :
It looks like this problem occurs on "older" devices.
1. Just make sure you have the 9.3 update loaded.
2. Back up your device and sync in iTunes on your computer. Eject from computer.
3. When done go to Go to Settings (on your device), then scroll down the apps and click on Safari.
4. Go to bottom of page and click on Advanced, then switch off Javascript.
5. Come out of settings and do a hard reset (this will not loose data), i.e. press home button and on/off button together until screen goes black AND apple logo re-appears. Then let go. Device reboots.
6. Safari should now work.
7. I have no idea what Javascript does other than allows interaction on some websites e.g. puzzles, questionnaires. - but i could be wrong! If you can manage without this you should be ok.
This worked on my partners older iPad and my iPhone 5.
* I have not had any email problems, so do not know if this will help email.