Stripe - User closes payment window but action chain still carries on

Hi, I currently have Stripe integrated and all works well except when the user decides not to place the order at the last second.

For example the user will add to cart, fill out their details and then click 'Pay'. This will pop up the Stripe credit card entry options (great), but if the user closes that WITHOUT entering any details it still seems to carry on with the action chain.

So in my instance I have this action chain...

But like I say, if the user simply closes the Stripe credit card payment options, it still carries on to the next step in the chain. So it will create the DB document, it will send the email and it will take them to the order success page - however no payment has been collected.

How do I fix this please?

Thank you