Tim Hortons review: poor customer service

I went there for breakfast today and I was very disappointed and shocked but the way I was treated by one of the staff! I ordered something and waited for my order. The lady that I don't recal the name announced my order with a very thick Indian accent. I heard it wrong and went to grab it. As soon as I took it I noticed it wasn't my order so I put it back and said this is not mine. She told me I SAID THIS NOT THAT . With a very bad attitude. I said I heard that I'm sorry and put it back. When she brought my actual order she dropped it on the counter and told me listen to your order! SERIOUSLY? IV never been treated like this as a customer anywhere else! I think you should really reconsider your hiring process as your staff don't know the basics of customer service! She gave me attitude even though I apologized for hearing my order wrong! I would really like for whoever that is in charge to talk to the staff and teach them how to treat a customer .
My phone number is [protected] in case you wanted to contact me. My name is Yalda