My apple ID is not working to do a free update. I get the following message: 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. It works on my iPad.
My Apple ID is not working to do a free update for my iMac. The message I get is : 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. This ID works fine on my iPad. Is the Mac App Store somehow different?
iMac, OS X El Capitan (10.11.6)