post https://sandbox.pay.3pa-y.com/api/v1/transaction/cancel
The Cancel Transaction API allows a merchant to cancel a pending withdrawal transaction before it is processed on-chain.
Transactions that are already completed, failed, or reversed cannot be canceled. Always verify the current status using /transaction/get before sending a cancellation request. Cancellation should only be performed for pending withdrawals, and the remarks field should be used to include relevant details for audit and reporting purposes.