Hypic showed free trial but charged huge fee after cancel, where to complain?

If Hypic showed a free trial but charged a huge fee after you canceled and you want to complain and get help;

Contact the app store/platform support AND Hypic support with a clear escalation;

• State that Hypic advertised a free trial but charged a large fee even after you canceled before trial end
• Provide your account email/ID, device (iOS/Android), the date you subscribed, cancel date, and the fee charged
• Attach screenshots of the free-trial offer, cancellation confirmation (if available), and the billing receipt

Ask them to;

• Confirm why the free trial was not honored despite cancellation before it expired
• Explain why the large charge occurred and on what basis
• Refund the charged amount in full
• Provide written assurance that no future charges will be applied

If the refund isn’t issued or support stops responding;

• File a complaint on Xolvie to report misleading free-trial billing and seek help stopping charges and getting your money back