Customer service

On the 7th I went to municipality at tramshed first floor to ask for assistance as I got the bill saying I owe R15000 for water and they have bloked me from buying electricity, the guy who helped me send me through to the so called supervisor who was very rude,before I finished explaining myself why I was there he said I can't help you please leave,there is a long que,I waited cause I saw that he jumped to the wrong conclusion,took that paper we use to pay rent with and start screaming looking at other people behind me and called an old guy with grey hair saying is Mr counsellor, he as well shouted at me,that supervisor screamed at me and say you guys don't check do you think you can pay R90 for water usage,if it was written R3 that means you were going to pay that R3,according to him city of tshwane was estimating our water bills that's why were under charged but is that my fault, I dnt think so,why do we have to suffer for city of tshwane not doing thier job properly,he said he won't help me and my kids can stay in the dark and get ****ed by ******s at night he doesn't care he confirmed that together with Mr counsellor. Customer service is the most importent thing,I don't think he has the qualities of a supervisor, the consultant who helped me in the beggining knows his job but that supervisor guy I doubt he doesn't.he forget that we as customers we ate the one that make their bank account active month end,I deserve to be treated like his only customer irrespective of what problem I might have,I felt embarrassed,so small because of him.