How it's calculated
Official: $ 10.000,00 ÷ 1.709,6321 (Argentine pesos per euro, dolarapi.com, 13/11/2026) = 6 €. It is the reference of banks; in a exchange house you will receive a little less by the margin.
Blue cross: If you have Argentine pesos in cash, the usual thing is to buy dollars from the blue ($ 1.570,00) and change them in Europe; that is equivalent to 1.709,6321 Argentine pesos per euro, i.e. 6 €.
With a card: the consumption is charged to card dollar ($ 2.041,00), so give less: a few 4 €. If you pay the summary with your own dollars there is no advance tax collection.
A month ago, with $ 10.000 You were buying. 6 €to the official rate.