£400+ ringfenced in single transaction at French fuel station

[Revels]

Monzo cannot do anything until the 30 days has passed, but at 30 days you’ll get the money back.

French petrol holding charge

Hi all, 17 days ago I was in France and decided to make the most of the cheaper diesel, so I went to a Carrefour supermarket petrol station. Everything was closed (it was Sunday) but it had pay at pump. I put my Monzo card in, entered my pin, and it said “transaction declined”. So I put my wife’s card in (we have a joint account) entered her pin, and “transaction declined”. Mistake #1 - I didn’t get the receipt for either of these. Then I used my Lloyds card (a Visa debit) and it worked, and I…