September 29, 2023
Address Change for Overnight Delivery of Refund Checks
Note: The standard payment addresses remain the same. Only the overnight delivery addresses are changing.
The update is effective Saturday, October 14, 2023. To prevent disruption of processing, the new address should be used beginning on that date. UPS and FedEx will return packages sent to the retired address, while the USPS will forward packages to the new address temporarily. Packages received prior to the cutover date will be held for processing until the new address becomes effective.
Retiring Overnight Address:
Effective until October 13, 2023
CGS Administrators, LLC
Lockbox 957124
1005 Convention Plaza
SL-MO-C1WS
St Louis MO 63101
New Overnight Address:
Beginning October 14, 2023
CGS Administrators, LLC
Lockbox 957124
3180 Rider Trail South
SL-MO-R1LB
Earth City MO 63045