Lack of service

My husband wanted his Walka activated after we down graded from the premium package. He phoned the call centre on Friday , the call centre agent said he had to pay R22 for the instalment for the rest of the month, which was not a problem. My husband had paid and the agent said the walka was activated. On Saturday morning the walka was still showing an E16 error message. When he phoned the call centre again the agent said that it had not been activated. The agent said that she cannot help him to activate it (due to the upgrade that was done to their system in July) neither could the supervisor. Upon asking who can help him and who can he speak to to activate it , it was conveyed that they would send an email to SOMEONE?..whose department could not be named and that they did not have a telephone number for that person either! Well needless to say, you cannot argue with a person that does not know her job, we are left with an inactive walka and a very agitated and disappointed disposition. Such unprofessional conduct from a service that I am paying for.