Accused of using **** R50 note

I am extremely disappointed and highly irritated as i was treated like a ******** and a *********, earlier today during my lunch break i went to checkers hyper Sandton to get myself an energy drink (play energy drink) upon my paying for the drink i then decided to draw R50 at the till and the cashier finalized my purchase and i left ,late around 19:40pm i went back to checkers to get cold drinks for my house, i then used the same R50 that i drew from the till earlier, only to be told by the cashier that the R50 note has dye stains and therefore she cant accept it, i then asked for the manager on duty who's name was Kenny and was adamant that its not possible that i could have gotten the R50 note from their store. I then requested that he checks the footage as i have the time and amount on my phone from my bank notification, he refused to listen to my side of the story and even threatened to confiscate the note of which at this stage became very aggressive with me ,surely he though this act would scare me, unfortunately with me being a store manager myself was not going to let this slide that easy not after the humiliation i experienced from this store ,which ******** in their rightful mind wears a name badge and company uniform to go and commit a crime of a R50 **** note clearly i am that ********, i have the R50 note in my possession as proof. it s a blessing in disguise that i decided to use the money back in your store imagine if this R50 is indeed **** and i used it elsewhere and got arrested you would be hearing from my attorneys as we speak. This is unacceptable from Checkers Hyper Sandton and this act of distrust that you pose on customers wont be forgotten.. I expect your response soonest

Sidney *** ***