One stripe account with multiple webhooks for different services

Log in to your Stripe Dashboard and there is a drop down option that shows your current account name on the top left hand side. Select it and add new account.

This was such a tidy fix.

Simply log in to your Stripe dashboard, and in the top right click you account name and then click 'Create New Account'.

Props to Matthew for the answer which also matches Stripe's docs

You must use separate Stripe accounts for projects, websites, or businesses that operate independently from one another.