Customer service? More like treat customers with disrespect

Good day. I called in on Friday wanting to know why all these emails and harassment and on my first encounter with Andrew Langachen something to that effect, i said i wont give my ID details because my credentials was previously used but as i was speaking and wanting to give the reference number, this idiot says something and put the phone down in my face. I then called again and spoke to Toni whoever and once again as im speaking, shes speaking over me and the conversation gets louder and louder and louder on her side. Pathetic service and horrible customer feedback. If it was my company, i would've given you a written warning or dismissed you in my opinion.