Since WholesomeONE is a marketplace of independent shops, refunds, returns, and exchanges are handled differently from vendor to vendor.
In general, each vendor on WholesomeONE sets their own policies regarding returns and refunds. These policies should be displayed on their Vendor information tab located on product pages.
If there is a problem with an order, contact the vendor directly first. If you are not satisfied or the situation cannot be resolved, contact customer service.