Need some advice on two questions
Coming in for a split vacation with 3 days in BA and 7 days in Bariloche.

Is it as simple to change USD to blue pesos in Bariloche as it is in BA? (I personally have always used the concierge to bring someone in to exchange, I never experienced a lower rate.

In regards to accomodations. I assume the best way for hotels is to book it 'reserve now and pay later' in pesos at checkout. Does anyone have any ideas or experience on how to book Airbnb or VRBO and not prepay via credit card? Basically, how can someone book Airbnb/VRBO and take advantage of the blue rate?