It depends on wether it has been sent as a package or as a letter. All small parts, such as strings, adjustment handles and screws, are sent as a letter from Denmark. The delivery time on these parts can be up to 10 business days.
If you have ordered larger spare parts, such as frame parts, wheels or net, it will be sent as a package. The delivery time for packages in Europe are 2-10 days depending on where you live. 

You can see our delivery time to specific countries here.