These companies have a unique position because they have found a niche marketing which is calls shop and drop. They send the product and you have to send it back within a certain number of days with only so much product to get your refund. Typically if you used your credit card, you can contest the charges if you passed that date. The only way to permanently stop the charges from coming in is to get the 1800 number of the company and explain VERY NICELY AND POLITELY AND PROFESSIONALLY that you don't need ANY product and if charges don't stop coming in, you will keep contesting the charges with your credit card (your card company will refund you every time, especially if you explain what kind of company it is and that it has an autoship. They are aware of the legal problems associated with pursuing such companies and so they will just use their payment contestation powers and refund the missing amount). If you have not received the product, you can explain TO THE COMPANY that you were not aware of the fact that your country's customs would hold the product indefinitely. You may be out the first amount because they sent the product already, but you can ask them to stop all further shipments because you won't receive it (most of these SHOP AND DROP supplement companies are on autoship, so you MUST stop the shipping schedule or you will have a major problem on your hands). Then go and contest the amount with your credit card.
If you never received the product, it is because you do not live in the US and the product is being held at your country's customs agency, because it is a supplement that has not been approved by your country's health board.
Again, contest the charges with your credit card company and get your refund.
In the future, don NOT buy any supplements from a foreign supplier. It is likely that you will never get them because they have not been approved by your country's health board.
I would not buy anything online from a store that is not recommended with positive 3rd party recommendations and references.
Do it once shame on them, do it twice, shame on you!