What happens if there aren’t enough funds in the main currency?
We always check the currency in which your transaction is first. If its balance is not enough, we will then check your account's base currency. If that also can't cover the transaction and you have cash in other currencies, we will use the next currency with the most free funds.
Note
One transaction will always be completed in one currency. We will not combine funds from different currencies to complete a purchase.
Viz:
https://helpcentre.trading212.com/hc/en ... n-currency
https://helpcentre.trading212.com/hc/en ... e-212-Card