Pro-Mix prefers PayPal payments for all purchases. We also accept payment via Cashier's Check or Money Order, but reserve the right to delay shipment until funds have cleared our bank. We only ship to confirmed addresses of verified PayPal members - No Exceptions! All payments must be recieved within 7 business days. Mailing address for payment is ProMix 960 East Northwest Hwy. Mount Prospect, IL 60056. Pro-Mix ships via UPS Ground or USPS unless otherwise arranged or stated.