app updates - iTunes store temporarily unavailable
Hi,
I usually will update my apps in iTunes once a week, so there is around 30 updates at a time. For the past month or so it will start updating one or two and then I get the message that I could not purchase "appname" and the iTunes store is temporarily unavailable please try again later. Before I would click update once and all apps would update, but now it becomes a long process. Any ideas what could be causing this? My internet is working normally so I can't understand what the issue might be? Thanks!