a) Seller send the order by Czech Post, the delivery is then up to mail / post service of the destination country (for example of final destination is United Kingdom, the delivery is up to Royal Mail; final destination is France, the delivery is up to La Poste; final destination is Germany, the delivery is up to Deutsche Post etc.).
b) The delivery time is usually 5-10 business days according to geographic distance from the Czech Republic. In November and / or December, the delivery make take longer (up to 3 times longer time). Seller can not influence the delivery time.
c) Shopper is to make sure of given contact information, especially completed billing and delivery address.
d) The Invoice is part of the delivered package and it is the Delivery note as well.