Have you experienced an error while purchasing with Google Play?

First, please connect to the link below to check if you have been charged. 

https://payments.google.com/gp/w/u/2/home/activity

If you see a charge that you did not receive coins for, please use the link below to submit a refund request.

https://support.google.com/googleplay/workflow/9813244?hl=en

Complete the form and note that you would like a refund.

You will see a message saying 'thank you for sharing your concerns'. You'll then get an email with your refund decision. You’ll usually get this within 15 minutes, but it can take up to two business days.