A very thin necklace can be repaired if it is broken. It is recommended to take it to a jewelry store or a professional jewelry repair shop for maintenance. Generally, the necklace is repaired by welding. If you can't connect, you can change the style.
Generally, after-sales service will be provided at the place where the necklace is purchased. If the necklace is broken during the warranty period, you can take it to the store where you bought it for repair, free of charge during the warranty period. If it breaks after the warranty period, you need to pay a certain fee to repair it.
If the necklace is broken, you can also take it to a professional jewelry repair shop for repair. These places generally have professional technicians, and professional repair tools can restore the necklace to its original appearance as much as possible.