Shoppers Drug Mart complaint: Unprofessionalism

I believe it’s incident took place on April 3 2022. I purchased three magazines totaling $22 and change. I handed two $20,s to pay, and received change for $30.00 . I pointed this out to the cashier and she insisted that I had given her a $20 and a $10. I explained that I did not have any tens on me and she said she would have to balance her till to clarify. She disappeared behind closed doors and reappeared waving sheets of paper under my nose claiming g she had balanced. I pointed out to her that she had disappeared behind closed doors and that I felt that it needed further clarification. She became quite hostile and yelled that I was accusing of her of lying, and did I want her to give me ten dollars out of her own pocket, I told her no and asked her how did she think we could resolve this, she proceeded to call on another staff member to produce camera footage of the transaction while at the same time yelling that I was calling her a liar. The footage that was produced barely identified me as the customer let alone the denomination of bills that I had used to pay.I asked to speak to a manager to which she replied that she was the manager leading me to believe that I had no further recourse. She then begrudgingly offered a coupon no 2019731