<human>: Can you succinctly summarize the text in 1-3 sentences?

Ordered a pizza and some soda for dinner one night, came out to like 25.69

I was busy on the computer with something so my girlfriend went and answered the door. She was in a hurry and the guy asked for the card.

She ran back in, grabbed the card, and shortly after came in with the pizza.

When I asked her how much she tipped, "Oh shit, I forgot to tip." I told her it was okay, I'd get the guy back next time.

I checked my account to day to find that Pizza Hut charged me 30.69 for the order.. In other words, someone forged a 5 dollar tip onto the order.

Normally this wouldn't be too much of a problem, it's only 5 bucks, what I was going to give him on the next visit.. The problem is that he forged it without my permission.

Called the Pizza Hut and spoke to a manager, got a $10 off for my next order, and he was going to look into the situation.

Has this ever happened to anyone else?
<bot>: Girlfriend forgot to tip the delivery guy, someone in turn forged a 5 dollar tip onto the order. Has this happened to anyone else?