When I came back they took my tip and never told me they charged my credit card and added 15% without my approval. Credit card fraud goes on at dijon's

Give them a call. Could be a simple misunderstanding.

Give them a call, it was more than likely a misunderstanding.

I try to remember to check my bill b4 I pay it. This could be a learning opportunity for you.

When I spend a good amount of money at a restaurant I sign both recipes and take a pic of both before I leave. So I can always have the proof of what I paid and the tip amount.

I'm sure it was.