Hotel does not do room blocks just 12% discount.

Thank you for choosing Holiday Inn Express & Suites Aurora-Naperville for your upcoming wedding! As we discussed, we are offering your group a 12% discounted rate link for you to pass along to your guests. They can book online by following this booking link Easyweddings Discount Link (The discounted rate will be reflected once your arrival/departure dates are entered).
and your guests are clicking on the link, they will get the discount.