1. No cash refund on all services. If you are not satisfied with your nails for any reason, we will do our best to fix it to your satisfaction. 2. There will be no guarantee on the regular polish. 3. If you have crack, smear, chip or completely popped-out nail, there will be seven days guarantee on SNS, Shellac, acrylic and P& W. Please go back to the original technician who did your nail.