If you are automatically charged 18% it's not a TIP, it's a service charge. I understand the need to guarantee a TIP, but at the same time when you start making it automatic it's no longer a TIP. TIP means
To
Insure
Promptness. If you take the measure of "Promptness" out of it then it's not a TIP, it's a service charge.
Moreover, when I'm automatically charged 18% by the restaurant the server(s) are losing out. I normally TIP higher than that. I won't add extra onto the 18% service charge. I also feel if the server knows 18% is guaranteed service could be affected.
If I'm not mistaken you have the right to ask for the 18% to be removed so you can leave what you feel is appropriate. I've read about others who've done that successfully.
Sorry, just my 2 cents on the whole automatic charges.
