Online businesses are permanently at war over a single commodity: customers. Thus, to develop longstanding relationships with clients you have to be able to create individually tailored opportunities for them. Take a look at the following features and decide which one suits your business.
From the Preferred Sellers Feature (Admin Interface -> Settings -> Site Settings -> Preferred Sellers Feature) menu enable / set:
Preferred Sellers Feature
If enabled, the admin can give certain users listing / sale fees reductions.
Expires After (optional)
Enter the number of days after which the preferred seller status will expire.
Enter the reduction percentage that will be applied.
Apply to Sale Fees
If checked, will apply the preferred seller reduction to sale fees.