Live bearing chameleons do not give birth on the ground or in a nest, period. They give birth in the trees or bushes and the sacs/un-calcified eggs the neonates are encased in burst/tear on the branches and leaves allowing the neonates to immediately take cover in the foliage. In the cases where the sacs don't immediately tear or burst, it is generally the fall into the foliage itself that stimulates the neonate to squirm and break free. On multiple occasions I have had to pick up neonates that did not immediately break out of their egg sac and drop them again to stimulate them to break free from their egg case.
In my opinion, the seller of this product does not know what he is talking about and/or is trying to prey on the uninformed in the hopes of making money selling dirt that is completely useless to the buyer.
Chris