Just spent 2 weeks in NZ, and Monzo worked well except for a couple of transactions. These were at the NPD petrol stations. I’ve raised this with Monzo support and they refunded me within a couple of minutes. I think it would be worth highlighting for anyone else travelling there.
This is what it looks like when you purchase petrol
It looks like it is pre-authing for $150, refunding that and then takes the amount required for the fuel I’d purchased - $54.45. Then another for $54.45 but using an updated exchange rate, but with a different name.
Talking to support, he explained that a card payment has two components - authorisation and presentment. In this case they weren’t properly matched.
I twice used NPD and both times this happened.