Faul mouthed adult

I went into Malvern Spar this evening around 18:00. They have security gaurds that check your till slip as one walks out (the only Spar that I know that does such), I accidentally give the gaurd the debit card reciept instead of the the one for the items I purchases. Mr gaurd decides to forcefully pull the slip out of my hand so I tell him not to grab the slip and he says something under his breath, I answer telling him he's rude (for pulling the slip) and he calls me a *****. I go back into the store ask for the supervisor who calls the security head. Mr faul mouth is called to explain himself which he doesn't but instead denies denies denies and says I heard him wrong. He was made to apologise by his boss, he looks at me walks away as he "apologises". I'm so infuriated and greatly offended by this mans actions. Spar head office will definitely be hearing from me, one cant be bul**** by grown men who think they can do as they please...