I was told there are no returns, but the product is defective, so I want to return it.

If the item is brand new and unused, and still has the original tags on it, and if you can show the merchant that the quality defect was there from the start, you can ask to have the item replaced with a new one. Or, if there is no more stock of the same item or an exchange cannot be done for some reason, you can ask to have your money refunded. Take the purchase receipt to the store and talk with them. If a repair is required, it could take time. Check to see if the store would be willing to mail the item internationally to your home, and what the cost to do so would be. If you are unable to get the item repaired or exchanged, you can try to cancel the contract of sale and get your money back.