you send out renewel contracts, or, if u r a scrub and don't use contracts, you make your yearly phone call, "i'm getting started mrs smith, are we on?" ok, either way, you don't hear back from the client. what do you do? call again, or just leave it at that? and...what if you DO make a follow up call, and they don't return your call, or send back the contract, do you keep calling?