Hello Shubha J.,
We sincerely apologize for any inconvenience you have experienced with the screw mechanism of your jewelry. We are committed to ensuring your satisfaction and would like to offer you a return for this item, along with a full refund, should there be any defects or manufacturing issues. Regarding the discount code, we previously communicated via email that there was no active promotion at the time of your purchase. However, as a gesture of goodwill, we have issued a $25 credit to your order. Thank you for your understanding and patience. If you have any further questions or need assistance, please feel free to reach out.