Refunds
Dimecam is one purchase with nothing that renews, so there is nothing to cancel.
iPhone
In the app: Settings → Refund opens Apple's refund sheet. Or go to reportaproblem.apple.com, sign in, pick “Request a refund” and choose Dimecam.
Android
In the app: Settings → Refund opens your Google Play order history. Or open play.google.com/store/account/orderhistory, find Dimecam and choose “Request a refund”.
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