In Chile if a shop uses chip and pin the Revolut card will not work. Swiped transactions work and ATM withdrawals work but chip and pin. Myself and two friends have tried this at multiple shops to no avail. Please investigate Revolut as just saying the transaction doesn’t make it to you is not really helping. I know it doesn’t make it to you ad it rejects before I even get s chance to put my pin in. The more important question is why doesn’t it work and if your card is not accepted in a particular country, you should really let people know so they can make an informed decision whether to get a card that does work.