MWEB Uncommitted to deliver a reasonable service standard

On porting of my telephone number, MWEB undertook to complete it within 21 working days. It is now 61 days and MWEB is unable to give an indication of when this would be completed. In this exercise the other two providers involved, Telkom and WebAfrica, respond within hours. I have already spent many hours on the telephone trying to resolve this problem. I tried to get a contact number of a senior person but have been limited by the call center and no information it seems to be available. It seems to be impossible for MWEB to resolve this simple task.