Instagram promoters

Hey Guys! I have one of my Instagram followers telling me she wants to be one of my promoters by putting a discount code in her insta bio with a link to my Instagram page (She has around 1000 followers). What does one give the promoter usually as a return for this kind of promotion?
Hey Jennifer
Do you need social media expert? If you want to promote your business through social media like Facebook, Instagram, LinkedIn etc you can contact with, because I am also finding like that and they increase targeted followers and my business grow rapidly.