Unused credits do not expire and are nonrefundable.
If a frame(s) fails due to an issue determined to be related to GridMarkets' system or hardware, we will promptly refund the credits consumed by the affected frame(s).
Credits will not be refunded for issues that are out of GridMarkets' control. For this reason, we recommend submitting a few test frames, to validate the submission settings, before submitting the entire job.