So firstly I’m not a current customer, but was just about to become one when I found the post on your blog. Big attraction of Monzo is that you look neat and transparent with a business model that isn’t rooted in the last century. An important manifestation of this is fee free withdrawals and if I’m honest was the thing that was about to make me overcome inertia to sign up.
It is a pain point with all of my current cards bar one (that card gives totally fee free European withdrawals but has a different pain point). This isn’t because I do vast amounts of transactions by value, but just that I feel utterly ripped off when I do, so waste time making life harder than it should be by collecting currency in advance which is a total anachronism in 2017.
If I was to vote for any of those options it would be (1) under the KISS principle and matching fees to costs to avoid cross subsidy or incentivising particular behaviours.
I very much don’t like any of the Free (up to a certain limit, terms and conditions apply, lots of small print) type options as these aren’t transparent and would always leave me wondering whether I had hit a threshold on a particular transaction.
My only question would be: are your costs flat rate per transaction or based on a %age of the transaction (or both).
Favoured option 4 would be a flat rate per transaction of say EUR 1.00/USD 5.00. That way I can modify my behaviour to minimise the costs (hopefully to both of us) by making a smaller number of larger withdrawals when outside the country.