i am wanting to change from the college rewards visa to something that allows an AU and better APR higher CL etc.
I would think you could change but would need to stay within the same product type (some of the cards have 3 different programs). They could upgrade you from the college rewards visa to the cash rewards or travel rewards visa. I easily changed from a platinum rewards to a platinum last year so I could get a lower APR but YMMV. Try calling the customer service number on the back of your card. They are quite friendly and will answer any questions you may have. Good Luck!