Originally Posted by
bigguyinpasadena
"which you don't technically have to pay but have to request be removed if you wish"
And you should ask that it be removed-total nonsense.
Quite common for tips added to the bill on a credit card charge to be skimmed by management

Always better to tip the server in cash.
Absolutely. I couldn't agree more.
But of course, the clever chaps who put this on the bill rightly assume that you don't want to look like a cad in front of your dinner mates, and the cost of £5 isn't worth making a fuss over.