Succulents are durable, and chances are the majority of your succulents started from cuttings. If the stem has broken off completely, allow it to dry for 1 week in the shade and then read our question on cuttings. If the stem is hanging, carefully cut off and then do the same.
Contact us as well if they need to be replaced/refunded. You'll need to take a picture and send to us. Don’t throw away broken plants! You can at least replant them for later enjoyment, cuttings are simply broken plants from mother plants!