Thank you for your purchase. We hope you are happy with your purchase. However, if you are not completely satisfied with your purchase for any reason, ELEGOO provides a straightforward warranty that is processed hinein the most hassle-free way possible. You can email the site owner to let them know https://inspirationpond.de/so-wahlen-und-bestellen-sie-die-richtigen-brillenglaser-fur-ihre-sehbedurfnisse/