Quizno's Classic Subs

yup, believe it or not, this f#@king store charged me two dollars more on 10 dollar bill as a tip without my authorization........not once not twice but three freaking times.......
if this has happened to you just mail me and lets see if we can do something..........i am trying to take legal action against this store

This store charged me two dollars extra as tip without my conscent and authorization not once not twice but three times.......i bet it does the same for every customer who pays by credit card.....i am trying to notify the concerned government department about this.......if you had similar experience.......lets just help each other out......