When it comes to refunds, Google's policy is that you have to fill out their official refund claim form
Google allows the submission of this form once every two months.
Starting April 2020 Google made few updates, they only allows the Google ads account owner to submit refund claims. This is why we can not longer submit it for you automatically, however you can still attach our report to the submission in order to substantiate it.
Download the clicks report:
After you login to your account, Go to "Tools" ---> "Refund Claims"
you will be presented with the following screen: