Why can't I buy zoysia grass seed?

I'm curious, why exactly are you unable to purchase zoysia grass seed? Could it be that the supplier you're trying to buy from is out of stock? Or perhaps they don't ship to your location? Additionally, have you checked to see if there are any restrictions or regulations in your area that prevent the purchase of zoysia grass seed? It would be helpful to know the specific details behind your inability to buy zoysia grass seed so we can better understand the situation and provide a solution.