Marshall GeoScience Portal
Refund policy
How overpayments, duplicate payments, and credits are handled. Provided for review and subject to legal and accounting approval before production launch.
Last updated August 2026
Overpayments and duplicates
If a payment exceeds the invoice balance or duplicates an earlier payment, the surplus is recorded as an unapplied amount and reviewed by our accounting team. You may choose a refund to the original payment method or a credit applied to future invoices.
Refund timing
Approved card refunds typically post within five to ten business days depending on your issuer. ACH and wire refunds follow bank timelines. Refunds are always returned to the original payment method where possible.
Service disputes
Payments for delivered professional services are generally non-refundable. If you believe an invoice is incorrect, contact accounts receivable before paying so the invoice can be reviewed and corrected in our accounting system.
Approval controls
Every refund requires a recorded reason, an accounting reviewer, and, above defined thresholds, a second approver. Refund history is retained in the audit record.