Chamet App Keeps Freezing After Pix Payment, Requesting a Refund

I would like to request a full refund of the amount paid for the services used in the Chamet app and that a concrete solution be presented to the problems I faced, since the application did not work properly and I was unable to use it as expected. On 15/10 I made a payment of R$ 917,82 via Pix to use the services offered by Chamet. However, during use the app repeatedly froze, restarted the games on its own and changed screens without any command, which made it impossible to use the service normally and as advertised. I felt harmed and financially affected, because I paid trusting that I would have access to a functional and good quality service, which did not happen due to these constant technical problems. I consider it unfair to bear the cost of a service that did not work adequately and did not deliver what was offered at the time of contracting. For this reason, I request the full refund of the amount of R$ 917,82 paid via Pix, as soon as possible, and I also ask that a solution be presented so that these failures are investigated and corrected, in view of the inconvenience and losses caused. I ask that Chamet present a clear and quick position and that an amicable solution be provided. If there is no satisfactory resolution, I will consider seeking support from consumer protection authorities to ensure my rights. Sincerely, Williana A***