No, you won't - you can make transactions and withdrawals from both your Business Euro Account and your Business GBP Account using your existing debit card.

To use your debit card with your Business Euro Account, you’ll first need to activate the Currency Control using these steps:

1. Select Card in the app
2. Select Control this card
2. Use the toggle to activate Currency Controls

Once Currency Controls has been activated, euro transactions will come from your Business Euro Account, including euro cash withdrawals, providing you have sufficient funds available. All other currency transactions will continue to come from your Business GBP Account.

This means that your €100 hotel payment will come out of your Business Euro Account, whereas your £30 train fare will be debited from your Business GBP Account.

If Currency Controls is not activated, all card transactions – even those in euros – will continue to be debited from your Business GBP Account.