I have a new MAC Book Air, it was upgraded to Yosemite without any problem. After the upgrade, I tried to update the following Programs - Garageband, iMove, Keynote, Pages, Numbers. I could not update - got the following error after about 5 attempts -- Update Unavailabe with this Apple ID - This update is not available for this Apple ID either because it was bought by a different user or the item was refunded or cancelled. As stated, this is a new MAC Book Air. All help is welcome....