Looking for SLOVENIA Si.mobil
 

looking to buy one slovenian Si.mobil prepaid simcard.

You should be looking in Google for:
simobil simpl sim "cena"
or
simobil simpl sim "price"

Top-up vouchers are called "SIMPL vrednostna kartica".

Ask for the price for delivery to your place. English should be understood by all shops.

Here is a link to one of the shops which seems to deliver to EU countries as well and without VAT if you give them your VAT number:
http://spyshop.shopamine.si/en/dodat...artica-simobil

Does it HAVE TO BE Si.mobil sim?
If not necessarily - I have Slovenian Tus Mobil and Izy sims for sale or swap.