Apology Letter For Not Leaving A Tip

Dear {Recipient},

I'm sorry I didn't leave you a tip after dining at {name of restaurant} this past {day of the week}.

Please know that it was a complete oversight on my part and not a reflection of your service at all. The service you provided was beyond my expectations and I had a wonderful experience at {name of restaurant} thanks to you. Unfortunately, I was in such a hurry to leave that I forgot to leave a tip—and I only realized it once I was already {home/back at the office}.

Enclosed is a check for {dollar amount} to make it up to you. I have also written a letter to your manager to let {him/her} know about your excellent work ethic.

Kind regards,
{Your Name}