Trying to upgrade to Yosemite. Apple wants Apple ID, password and credit card info. I provide all including credit card info for a card that worked a couple of days ago. Apple declined the credit card. Why? On what basis? If I knew what was wrong (if anything is wrong on my side), I could do something about it.
Who do I ask to sort this out? Or, what do I do to sort this out?
Who do I ask to sort this out? Or, what do I do to sort this out?