Since, play store already have the refund policies, which allows some hours for refund of purchased application. Simply press the refund button in play store.
Along with that, we provide the facility of manual refund till 4 days from the date of purchase, in case Application didn't work properly or required features are not useable. We strongly suggest user to use Demo version to understand the working capability of the application before making purchase. To claim refund, user needs to contact us in our mailing address with purchase ID that playstore had sent you post purchase.
If you have any questions or suggestions about our Refund Policy, do not hesitate to contact us at firstname.lastname@example.org.