bad services

on friday 13/11/2015 i called vodacom customer care in relate to a query on my contract and i spoke to Cynthia Kolobe who advised that she will get her manager to call me back even today on the 16/11/2015 she has not called. Is this how vodacom do their customer service by promising client that they will call them back and not call or promise clients that their will do things and not fulfil their promises. I think vodacom should provide us with a number to call for assistance as their customer care is useless.