You agree to ensure payment for any items You may purchase from Us, and You acknowledge and affirm that prices are subject to change. When purchasing a physical good, You agree to provide Us with a valid email and shipping address, as well as valid billing information. We reserve the right to reject or cancel an order for any reason, including errors or omissions in the information that You provide to us. If We do so after payment has been processed, We will issue a refund to You in the amount of the purchase price. We also may request additional information from You prior to confirming a sale, and We reserve the right to place any additional restrictions on the sale of any of Our products. You agree to ensure payment for any items You may purchase from Us, and You acknowledge and affirm that prices are subject to change. For the sale of physical products, We may preauthorize Your credit or debit card at the time You place the order, or We may simply charge Your card upon shipment. You agree to monitor Your method of payment. Shipment costs and dates are subject to change from the costs and dates that You are quoted due to unforeseen circumstances. For any questions, concerns, or disputes, You agree to contact Us in a timely manner at the following: firstname.lastname@example.org.