Typeform sending infinite requests to my webhook

Hi 

I’ve created a Workflow on retool which works as my webhook. I then create a webhook on Typeform using the url from retool.

On submission of a Typeform it sends multiple/infinite number of requests to my webhook, one after each other. 

I’ve just deleted the webhook on Typeform when this happens as this stops it from making requests. I’ve deleted and recreated the webhook on Typeform twice.

Any idea why this is happening and if there is some work around?