Thanks for this - if all else fails I will give this a go, however there is light at the end of the tunnel as one of the phones has now completed the updates and is fully functional - sadly it's my husband's phone, not mine!
He did speak to a guy in a phone shop who said that the updates do take forever but once they are done the phone will not disappoint.
I had a slight hiccup with mine in that the battery drained in the middle of the update process so I think it went back to the beginning of the download. Hopefully it will be done some time today.
Thanks for all the help and advice everyone