To check if Apple Pay is available in your country, visit this article: How can I deposit funds to my Shares account?
In the EU, deposits with Apple Pay (where it’s supported) is not available for your first deposit. Your first deposit must take place via a traditional bank transfer or open banking. After this initial top up, you will be able to deposit with Apple Pay from the second deposit onwards.
To make a deposit using Apple Pay:
Open the deposit flow by tapping on the Deposit option in the “Cash” section on your Home screen
Choose “Apple Pay” as your deposit method.
The minimum deposit amount with Apple Pay is £5 in the UK and €5 in the EU. The maximum amount you can deposit with Apple Pay is £5,000 in the UK and €5,000 in the EU.