Rotten, non-existing after sales service

Vumatel has no regard for customers once they have roped them into a contract. I have been trying to get help to fix my vumatel line for more than 3 days now. I have spoken to a number of call centre agents but the agents have no ability to help. They are hopeless!! I have asked to speak to managers, but they simply refuse to put me in contact with someone that has any decisioning ability. Really disappointed. Stay away, rather go with a company that cares about after-service.