Extra Yard Signs - No Stakes

One yard sign and stake are included in system.  I ordered extra yard signs.  I only received the signs, no stakes!  I didn't see that I could buy extra stakes so I called simplisafe.  Guess what?!  You can't buy stakes.  I was told to go to the hardware store, which to me, is inconvenient and another step.

I think this is ridiculous.  Now, I have ONE yard sale sign in my yard and two extra signs in my living room!