Subway complaint: Horrible Service

This Complaint is about crass disrespect of an sandwich artist toward a customer (me). On March 9-2023 I went into the store with a coupon I received via mail and I ordered a Steak and Cheese for lunch. I also told the Host I wanted a cup for water as I was not having NO DRINKS other than water. He told me he can only give me a transparent cup. I said whatever he wants is fine. He proceeded to charge me with a Small Fountain drink. When I brought the charge to his attention he became belligerent and disrespectful. I told him to not raise his voice at me, point at which he took the sandwich from the counter and threw it on the counter behind him, returned the ten dollars I gave him and told me to get the fuck out of the store and return when I speak better English. I told him to give me the name of the Manager of the store, which he adamantly refused. I called later at the number on the receipt 469-888-8862, but there is a voicemail announcing clients the mailbox is full and no one can leave any messages. I find the employee’s behavior crassly disrespectful and I request a manager to take the necessary measures to prevent future incidents such as this one.