Merchant support

Use voice authorization to authorize a sale or perform an Address Verification Service (AVS) check. 

To complete a voice authorization with Worldpay, call 1-800-645-9120.

For more information about how to complete a voice authorization, go to Complete a voice authorization.
 

To access your merchant account, go to https://www.accessmyiq.com/login.

To manage and validate your Payment Card Industry Data Security Standard (PCI-DSS) requirements, either: 

Go to the PCI Portal.

Call 1-833-534-8422. 

To track and manage your chargebacks, either: 

Go to the Chargeback Portal.

Call 1-800-667-9573.

Which WorldPay support options do you need?

If you don't know your MID, contact our Support Team for assistance:

Email [email protected].

Call 1-888-477-4500.

Which WorldPay support options do you need?

If you are unsure, contact our Support Team directly for assistance:

Email [email protected].

Call 1-888-477-4500.

Merchant support

Hours: Monday to Friday, 8:00 AM to 6:00 PM CST

If you have questions about funding, billing, or statements, call our Merchant Support Team at 1-800-204-6431.

If you have questions about your terminal configuration, payment processing, or the gateway, call our Tech Support Team at 1-800-572-2267.

After-hours support

For support outside of regular hours, call 1-800-228-0210.

Use voice authorization to authorize a sale or perform an Address Verification Service (AVS) check. 

If your MID begins with 434 or 5166, call 1-800-228-1122. 

If your MID begins with 708, call 1-800-645-9120. 

For more information about how to complete a voice authorization, go to Complete a voice authorization.
 

To access your merchant account, go to https://www.youraccessone.com/64_ms_login.aspx. 

To manage and validate your Payment Card Industry Data Security Standard (PCI-DSS) requirements, either:

Go to the PCI Portal. 

Call 1-844-218-5392.
 

To track and manage your chargebacks, either:

Go to the Chargeback Portal.

Call 1-800-672-5007.

Merchant support

Hours: Monday to Friday, 8:00 AM to 6:00 PM CST

If you have questions about funding, billing, or statements, call our Merchant Support Team at 1-800-204-6431.

If you have questions about your terminal configuration, payment processing, or the gateway, call our Tech Support Team at 1-800-572-2267.

After-hours support

For support outside of regular hours, call 1-800-228-0210.

After-hours device support

For device support outside of regular hours, call the number for your device:

Desk 3500, Desk V400, or Desk VX520: 1-800-552-8227

PAX: 1-877-859-0099

Dejavoo: 1-877-358-6797

Valor: 1-800-615-8755
 

Use voice authorization to authorize a sale or perform an Address Verification Service (AVS) check. 

To complete a voice authorization with TSYS, call 1-800-291-4840.

For more information about how to complete a voice authorization, go to Complete a voice authorization.
 

To access your merchant account, go to https://merlinkresponse.com. 

To manage and validate your Payment Card Industry Data Security Standard (PCI-DSS) requirements, either: 

Go to the PCI Portal. 

Call 1-833-571-3928.
 

To submit documentation for a dispute or chargeback, either:

Go to our online portal.

Send the documentation by fax to 1-706-644-5210. 

For assistance with chargebacks, call 1-866-637-5467.