This is a very confusing status with DHL eCommerce. Once a shipment has been booked and the local depot have manifested the item to a courier to be collected, the status of the shipment within their portal changes to ‘Collected > At sortation facility’.

The reason they do this, as not all collection drivers scan at collection and therefore their logic is: if its been booked to be collected, it will be collected as has been manifested to a driver to collect.
Only when they see a physical scan, i.e. at the collecting depot (where the goods are loaded straight from the van to the conveyors), the central hub, the delivering depot or the final mile delivery courier, will they accept that they have received the goods.
Note: the RDS portal will only display ‘actual scan events’ in the tracking history.