Well I am about to send a letter requesting my phone be returned to the way i purchased it or my contract be terminated due to these changes and the update not doing anything to notify me of the changes before they were made to my phone.
Consumer Direct seem to think I have a case
Based on the information supplied within your e mail I would advise that you could argue this upgrade has significantly changed the terms of your contract without your agreement as you were not given the relevant or full facts. The phone is no longer of a satisfactory quality or fit for its purpose . It would seem reasonable to request the phone is reinstated to the previous settings .