Looks like a rep is already looking at the ticket, Jesicaa, I don’t believe you can at this point. Normally you’d just go into Support > My tickets. Click on the ticket you have open and there should be an option to close/cancel it.
As for the request, I’m not sure that is something we actually have access to do in Classic. Even if we wanted to and policy allowed for it, I don’t believe the option exists for us. Sorry. 