Terms of service

 

Payment Methods

www.hdzero.us accepts payments via credit cards to reduce transaction costs.

 

Tariff Issue

www.hdzero.us serves only US customers, with orders shipped from our California warehouse—meaning no worries about tariffs.

 

Tax Issue

We only collect sales tax on orders placed by customers in California.

 

Refund

If there is something wrong with your order and you need to return it to us for a refund, please email us at sales@divimath.com, and our sales agent will guide you how to process in detail.

 

Handling Time

Once we receive your cleared payment, we will ship your order within 1 to 5 business days.

 

FAQ:

- What should I do if I can’t proceed my payment?

Firstly, you should make sure that the credit card is enough for you to pay for the order;

Secondly, it may be the internet connection problem, so you need to try again to proceed the payment for several times;

At last, if the payment is still not processed, please feel free to email us at support@divimath.com.