cancellation

​@Aryaadubey thanks for posting! You can use the steps listed at https://support.google.com/googleplay/answer/7018481 to cancel your new subscription to Adobe Scan. Please make sure to end your evaluation soon, to receive a refund as suggested by ​@John T Smith and ​@kglad . For more information, see https://support.google.com/googleplay/answer/2479637.

You get a refund if you cancel a TRIAL in no more than 14 days from starting the trial

refunds are automatic if you qualify.  they take up to 14 days. 

meanwhile,  check your account to confirm it shows what you expect, https://account.adobe.com