I plan on moving to Belgium, during the first couple of weeks I will be staying with friends.
While with them I will search an apartment, however until I found one, what documents can I provide to prove my residence with my friends?
If I want to open a bank account I need to have an address, and I want to know if I can start the process from my friends' house and later change the address.
Is there a specific document I can print and let them sign to prove the I can stay there for an indefinite amount of time?