VERY POOR SERVICE!!! CANT KEEP UP TO STANDARDS

My husband purchased 2 Blackberry handsets 2 years back and contract ended on the 31 March 2015.On 16 March 2015 the BIS did not work so he called the customer care,he was told that it was because the contract was coming to an end.He was then told about a package for R69 per month for each phone which consists of BIS and R100 airtime,instead of us loading BIS on our own which costs R59.Which was confirmed that day.It seems that the employees at the call center dont know anything about the package.After being on hold for 1 and a half hours and being transferred to 4 different consultants and asking to speak to a manager we had no joy.The consultant said that we were given false information,then we were asked to wait till the 1st of April and wait and see what would happened.We asked to speak to a manager, there is always no one available to assist.Finally after calling in again a consultant knew about the package and logged a request. It has been more than 24 hours,we received an sms that it is being investigated by the CIC department and feedback will be provided once it is resolved.This is unacceptable.How long do we have to wait? STILL NO BIS, VERY UPSET WITH BAD SERVICE