Ok after many weeks of back and forth, Car Giant replaced the radio. This did not solve the issue. They also replaced the battery as it went flat at one point (possibly unrelated).
They eventually sent it to Ford, who have apparently replaced the whole dashboard!
We then picked it up yesterday and I now see Phone, Radio, iPod features etc. on the dashboard! I also now have voice control which never worked before.
HOWEVER, the last time we turned on the car, we only saw Trip Computer and Settings once again. After turning off car and trying again, everything else showed again. Sometimes it works, other times not.
Looks like it is going back to Ford - has anyone else experienced this behaviour?