We are sorry to hear that.
Firstly, please check that you are using the correct email address that was used to place your order and the correct WEB order number.
If you are unsure please contact our Customer Service team via Contact Us | Gym King – GYM KING (thegymking.com), we should be able to help you.
If the details you are using are correct and you are still unable to create a return please send over a screenshot of the error message and we will look into this for you.