No, you will only pay for your order and shipping costs after checkout.
However, depending on the country you live in, please be aware that extra import taxes can be charged when receiving or returning your order (more info). Make sure to inform yourself about these and to keep an eye on the tracking of your package. You are responsible for paying the additional fees.
Please note that we can only refund the cost of returned products (and in some cases the initial shipping costs). We will never refund import charges and taxes to customers receiving or returning orders.