You can track your order status online by signing in on WeBuy.com then going to My Account and then 'Your Sales'. Sell to CeX orders are then shown under their respectives categories.
Active Orders tab - Orders that are active in the system.
Completed Orders tab - Orders that have been processed and paid or returned.
Drop & Go - Orders that have been created for dropping in-store.
Cancelled - Order that have been cancelled.