How to link Stripe with a UK Shopify account?

[AAC-UK]

Hello,

https://www.shopify.com/uk/stripe shows you can create an online store with Shopify and accept credit cards with Stripe. We've recently opened an account but cannot see how to link our Stripe account.

Steps we've taken are Settings - Add payment methods - Search by provider, but Stripe does not appear.

Any help would be greatly appreciated.