I have a Citi Platinum Select Master card since 2011.
Called in on 10/31/17 and got a retention offer of
"..$95 credit after $95 spent in 2 months, also 1000 bonus miles for 12 months if i spend > $1000 every month.."
I have spent perhaps $100 on this card every year (mostly for AA flight booking taxes), and been getting $95 credit every single year since 2011..