Make money and hope client doesn't notice???

Who in God's good name gives you the right to increase my credit limit without my consent - just so you can be more profitable? It pathetic honestly. A few years back when i wanted to increase i had so much issues and i couldn't now all of a sudden you want to give it to me. Please reverse it and put my limit where i agreed for it to be - don't be forward just so you can make more money at my expense