Contact Us
SMB Customer Service Center – where you'll always speak to a person.
| SMB Customer Service Center | |
| (800) 943-8488 | |
| Service Center Hours | |
| Mon – Fri: | 7:30 AM - 6:00 PM |
| Saturday: | 8:00 AM - 12:00 PM |
| SMB 24/7 Telephone Banking | |
| (417) 358-5580 | |
| (800) 300-5580 | |
| Credit Card Balance Inquiry | |
| (800) 423-7503 | |
| To Report a Card Lost or Stolen | |
| Debit Card | |
| Mon – Fri, 8 - 5 | (800) 943-8488 |
| After hours | (888) 297-3416 |
| Credit Card | (800) 325-3678 |
| Mailing Address | |
| PO Box 814 | |
| Carthage, MO 64836 | |
| ABA/Routing Number | |
| 101203641 | |
