Default shipping method "Economy Shipping" is not registered mail so it does not have Tracking Number. 

It has "Custom Number" which is not trackable 

If you need trackable shipping please choose "Standard Shipping" which does have tracable tracking number for worldwide

Estimated delivery time is between 8-30 business  days 

Europe receive their item in 8-15  business days,

North America receive their item in 10-25 business days,

Rest of the world 10-30 days

sometimes there may be delays  because of custom process and security controls during transportation

(speciality italy,russia,germany,new zeland ..)