If you prefer to pick up your package while it's already in transit, you can easily make the change through DHL On Demand Delivery.
To do this, simply follow these 7 steps.
For frequent shippers, click 'Sign up or Login Now' to access an existing account or create one for future use.
For one-time users, click 'Manage shipment as a guest'.
Select 'Service Point or Locker'.