Customer support for charges and purchases. Sales for partnership inquiries. A single direct line for compliance review.
For questions about a purchase, charge, refund, or receipt.
Support@4Square.us
1-877-210-1090
Monday through Friday, 8:00 AM - 8:00 PM Eastern.
Email responses within one business day.
For merchants evaluating the platform or interested in joining the participating merchant network.
Sales@4Square.us
1-877-210-1090
Monday through Friday, 8:00 AM - 8:00 PM Eastern.
For acquirer review teams, compliance officers, and regulatory inquiries. Full underwriting documentation available on request.
Compliance@4Square.us
1-877-210-1090
Use the form below for general inquiries. For time‑sensitive purchase or transaction questions, please call.
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