Refund the prepaid gas

The prepaid gas to payNativeGasForContractCall or payNativeGasForContractCallWithToken could exceed the actual amount needed for relaying a message to the destination contract.

The Executor Service automatically tracks the excess gas amount and refund it to the payer’s wallet address by calling Refund in the Gas Service contract.

The refunded amount =

• The total paid amount
• -the network base fee
• -the actual gas used
• -the estimated gas for transferring the refund

You can check the refund status on Axelarscan UI. See Monitoring state of GMP transactions.