Rug Doctor review: Service received over phone with corporate "customer service" agent

I called Rug Doctor Customer Support LIne at 1800-784-3628 on 8/7/23 @ 4:02PM. I wanted to find info on how to return an upholstery accessory product that I purchased directly on rugdoctor.com

I was told by an agent that I need to return my accessory at the same place I rented the carpet cleaning machine. I informed her that I had not rented a machine and that I purchased the upholstery accessory, not from a physical store but from rugdoctor.com. She became defensive and accusatory with her remark that they don't sell accessories and only rent them out along with the rental of their various Rug Doctor Carpet Cleaning machines, and only from their rental locations. I asserted that she is misinformed and her company has a retail side that she should familiarize herself with. She increased her volume to state that I confused her and that I told her that I had a rental. I wouldn't abstain and asked for a supervisor that could take my call. I told her that i wasn't confident in her abilities to assist me further. And how could I want her to further help me since the very beginning of my call I found her to be rude, no ability to listen, a defiant and argumentative agent, and apparent distaste for me. I asked for a supervisor and she repeatedly yelled the same sentence about 50 times over and over and over again at a very loud and overbearing and antagonizing consistency. The redundant sentence she violently bashed me with was something like,"if you want to talk to someone else or a supervisor, you need to hang up and call right back cuz I ain't transferring you. you need to hang up cuz i ain't disconnecting. so whatchu wanna do. you need to hang up and call back if you want to talk to someone else or a supervisor..." I said I wasnt going to hang up so that she needs to transfer me. and we went in circles, literally. she stopped yelling and laughed at me. and placed me on hold with the elevator music most call centers use. about 5 minutes later she came back on the line and said since no one is on the linei am disconnecting. and hung up with no hesitation.