BIS not functioning - Sept 2015

Sept 15 I bought BIS for my son's prepaid cellphone. When trying to activate it, there was an error and we had to call the VC cust care centre. They advised that everyone who bought BIS in that specific week, had the same problem and that the problem would be fixed by the following week. The following week, I called VC again, and yet again, the problem on VC's side was not fixed yet. They advised that it should work a few days later. A few days later I called VC again and this time they said that the BIS issue on VC side had been sorted out but I still couldn't activate it on my son's phone. They told me to just give it time and that it would automatically start working. The week after, when I called again, they told me the same story. BIS issue is fixed and that I should just give it time and keep on trying on the cellphone. Everytime I called, I expressed my concern that the expiry date of the BIS would be 16 October 2015 and asked what VC is going to do about the fact that the BIS error was on their side. Everytime the consultants I spoke said 'I don't know.... im not sure'. Today is the exp date on the BIS for my son's phone and BIS still not working! Still no reply!