return information

Hey. I emailed the other day about making a return/exchange and it said it would take up to 2 business days to get my return information. I wanted to exchange a top i just bought because it was too small and i need a bigger size. I'm very upset considering these swimsuits aren't cheap. i would like something done about this asap. My order number is #2387860NA and i need the top in an XL. the bottoms are fine and i dont need another size it them.