Taco Bell review: product and service

I am a vegetarian, so I always order food with beans and minus beef. Out of 10 times I go to this Taco Bell I find meat or beef in my food. I never complained, but this has to stop, someone should not be careless in doing their job. So I called to complain about this issue and a lady picked up, she didn't said her name after she picked up the phone which is she don't know how to answer the phone. Then she heard about my complain and apologize, so I told her to give phone to manager. I don't know who she gave phone to, but that person just hang up the phone. That lady who picked up the phone also told that you can't hang up like that before someone hang up the phone. Then I called back but no one pick up my phone. It seems like they don't care about vegetarian customers, I don't mind if they say that they don't serve vegetarian food, I would have stop going there. I feel like I am not welcome anymore, so I am never going to go this place again. I have been to several Taco Bell, but never experienced meat in my food and this bad customer service. This all happened on 20July2019 at 9 pm.