Sadly none of this explains why I can download new aps from the app store but not update old ones.
So, Chris CA, can you further anythng since I have answered the questions you posted in response to my original post? (see below for reminder)
Chris CA wrote:
quilkin wrote:
I have tried all the suggestions in this thread (yes, including Chris CA's); nothing works except the option to delete apps and then re-download them.
Where are you seeing an option to delete & redownload?
I changed ny ID because my old email address was due to be withdrawn; I had no choice. Everything else works with my new ID;
You changed your old AppleID to a new email address or you created a new AppleID?
I definately changed my old ID to a new one. My password remained the same. If I had created a new one I could understand the consequences perfectly. (Yesterday, after posting my message, I did create the old ID again to see if that would help, but of course it then needed all my credit card details again before I could use the app store, so I gave up at that point.