Log into Google ReCaptcha and add your site (you will need to create a Google account if you don’t already have one). The ReCaptcha that is used by the Web Builder is the Invisible ReCaptcha V2
Enter the domains used by your website, also add in Builder.Bookalet.co.uk otherwise your ReCaptcha won’t work in preview mode
Click on the Register button. You should then be able to see your ReCaptcha keys:
You will need to copy and paste these keys into the relevant fields in the Web Builder form configuration dialog:
Please note that if you do not see the Google ReCaptcha fields in your configuration dialog, you are probably using an old contact form so you will need to replace it with new contact form element.