Billing Terms & Conditions

Order Acceptance

When you place an order with us, you are submitting a request to purchase the selected products. Your order is accepted once it has been processed and shipped.

We reserve the right to accept, decline, or cancel any order at our discretion, including in cases of product unavailability, pricing errors, payment issues, or suspected fraudulent activity.

Billing Timing

Full payment is charged at the time you place your order. Orders are not processed until payment has been successfully authorized and confirmed.

Pricing & Currency

All prices are listed and charged in U.S. Dollars (USD) unless otherwise stated.

Prices may change without notice. Any price changes will not affect orders that have already been confirmed.

Taxes & Duties

Applicable taxes may be calculated and collected at checkout based on your shipping destination and applicable laws.

For international orders, customs duties, import taxes, VAT, or other fees imposed by the destination country may apply. These charges are not included in our shipping fee and are the responsibility of the customer.

Order Confirmation

After you place an order, you will receive an order confirmation email summarizing your purchase.

This email confirms that we have received your order request. Final acceptance occurs when your order has been processed and shipped.

Payment Authorization

By submitting payment, you confirm that you are authorized to use the selected payment method and that the billing information you provide is accurate and complete.

Failed Payments

If a payment fails, is declined, or cannot be authorized, your order will not be processed until successful payment is received.

You may be asked to provide an alternative payment method to complete your purchase.

Refunds & Adjustments

Approved refunds are issued to your original payment method.

Refund eligibility and applicable conditions are described in our Return & Refund Policy.

Once a refund has been approved and issued, please allow approximately 3–13 business days for the funds to appear, depending on your payment provider.

Disputes & Chargebacks

If you believe there is an error with a charge or payment, please contact us at [email protected] before filing a dispute or chargeback with your bank or payment provider.

We’ll review the issue and do our best to resolve it quickly and directly with you.

Nothing in this section limits your legal rights or your ability to dispute a transaction where permitted by applicable law.

Changes to These Terms

We reserve the right to update these Billing Terms & Conditions from time to time.

Any changes will be posted on this page with an updated effective date. Your continued use of our website after changes are posted constitutes acceptance of the revised terms.

Contact Us

Have a question about billing or a charge on your order? We’re here to help.

Business Owner / Representative: Lê Công Hiếu

Address: PHO 1, LONG ANH, THANH PHO THANH HOA, THANH HOA, Vietnam

Email: [email protected]

Phone: +84 896 492 937

Support hours: Available 24/7

Response Time: Within 24 hours

Website: ksmog.com