I can't find this in the Ts&Cs, but surely someone knows... Assuming one meets the spending threshold on a card to be granted Gold status, when does it become effective and when does it expire? Does the spending threshold "reset" on January 1? On your card anniversary? etc. Does spending-based status "expire" on January 1 of the following year? On the card anniversary of the following year? One year from when it was earned? At the end of the following year? Thanks.