Chile: Public services open in Christmas period?

[Zibou]

Hi Chilean riders!

I am planning on arriving in Santiago by December 20th to buy a bike as quickly as possible.
This means I will need to go to Servicio de Impuestos Internos for my RUT and to Servicio de Registro Civil for bike's papers.
My idea is to get the paper work done between the 21st and the 23rd if possible. Hopefully I would be able to have my padron printed in Puerto montt by the 30th or early in January. But all depends on whether or not those administrations take holidays or not.

I did not found any information regarding holidays on the web sites, should I expect to find those offices closed at this time of the year?

If someone also know of a Notary opened in that period, would be nice!

I might be able to arrive a few days before, but it might be complicated.

Muchas gracias por toda la informacion que me podrian dar!