For anyone heading to El Salvador, I had no luck using Monzo at any ATMs (including Scotiabank, Banco Agricola etc). No problems for card transactions in supermarkets, just cash.
Im sorry to hear that but thanks for sharing this had you enabled Magstripe withdrawals?
Yes, we had two cards both enabled. Contacted support through the app and it seems that no authorisation requests had even come through, having just tried three different ATMs. There didn’t seem to be a reason - not the end of the world as I used another card at one of the ATMs I tried, and Monzo has worked fine through six countries so far!