Race bib for sale

I injured myself and have a 1/2 marathon bib that I won’t be using. I have picked it up and was told it’s possible to change the name on it at the Expo, but I have no idea if this is actually true or if there is a fee, or how to do it. If you know what to do with the bib to change it into name, it’s yours for a reasonable offer. Melissa melissakuntz09@gmail.com Sent from my iPhone