I went to this restaurant a couple of weeks ago fo...

I went to this restaurant a couple of weeks ago for my friends birthday dinner. The food was delicious and the service was alright. Our server barely cracked a smile though and wasn't friendly at all despite trying to joke with her to break the ice. A few days after dining here, this server decided to give herself a nice tip on my credit card. I called the other girls I was with and come to find out she tipped herself over $40 on each of our cards on top of what we had already tipped her. I tried calling this restaurant several times but there's not even an option to leave a voicemail. The website also doesn't have an email for me to reach out to a manager. Granted, $40 isn't going to break the bank but the fact that I can't even talk about a solution with a manager is super disappointing.. I had to resort to disputing the charge with my bank..