You'll get several receipts.(TS) The server will present you with the bill showing the meal total. Then you give them the card to take off the credits. They'll give you back a receipt showing credits used and credits remaining. They'll also give you a new receipt showing your new total incluidng the 18% tip. You sign the one with the total and you also get one without totals shown. When we used the plan in Jan. and Sept. 05 I wrote the total we would have paid on the receipt showing zero. Sometimes I was also able to keep the first receipt too. (I'm pretty sure of this, but if I'm wrong someone will let you know)
On CS you sign the receipt with the total amount on it and they give you another receipt without amounts. I wrote the amount on that one.
Hope this helps.