It’s kinda urgent, i cannot for the life of me find any shops on the Google.
Does anyone know is there a shop that sells whistles and perhaps it’s adress??? 
Maybe La Clau de Sol. Or Unión Musical (7 stores in Barcelona). Both are regular music stores with electric guitars, etc. But they also sell some folk instruments - fabioles, dulzainas, grallas. So maybe they carry whistles, too.
http://www.laclaudesol.com
http://www.unionmusical.es/shop/about-ID-2.htm
Here is a gaitero (gaita player) in Barcelona who also plays Irish whistles. Maybe he could recommend a shop:
http://www.cornamusica.com/inst.htm
If Susato have dealers in Barcelona, you might find Susatos and others. Contact Susato:
I was in Barcelona a few years ago, but I wasn’t shopping for whistles. Good luck!
Thank you SOOOOO much!!! 
Hi,
Also you can find whistles at http://www.keltia-art.com and at http://stores.shop.ebay.es/Ars-Celtica
Cheers
Vítor