FYI - I use the Citibank at Callao and Alvear and it's still open 24/7 inc weekends.
The two Citibank labelled ATMs on the right don't ever seem to give more than 500p, even if you have a Citibank account like I do.
The Banelco labelled ATMS machines on the left will give any amount including withdrawals I've done up to 2500p - might do more but never tried. Usually just get 1500 to 2500.
Note - even though it's a Banelco branded ATM, since it is inside the Citibank branch, if you have a Citibank account, you get zero charge for ATM withdrawals - no foreign currency conversion fee, no non-Citibank ATM use fee, and no charge from Banelco for using the ATM.
On average, I've seen zero correlation between day of week vs. What exchange I got. The exchange rate I get is what is current as of the world market at that time. So I've been getting anywhere from 3.01 to 3.04 usually.
