Trading in pre-owned fashions and reward customer with credits are the core business of Material World, so Trade-In offer flow is the cardiovascular system of the company.
However, there was no designer working on the user flow before. The functions were just stacked up to the site gradually by the tech team as the business grew. Therefore there was not a clear path to lead customers to where they need to go.
Here are the existed screens of the Trade-In offer flow: