Awaiting my Voucher from Simba for Burnt Chips

I complained to Simba over 4 months ago regarding my Burnt Chips i found in my Simba Lays Chips i purchased. I have numerous Reference Numbers and every time i call to complain regarding this and me awaiting my voucher for the re-compensation of the chips they issue me a new Refrence Number and get told vouchers are on the way. Till today i have not received anything from them and am tired of calling Customer Care and absolutely NOTHING gets done. My time, my cellphone bill they don't care about. Will someone please do something regarding this matter as a matter of urgency.<br> Reference Numbers i have already from Simba:<br> 15-05-2005<br> 15-06-992<br> 15-07-1464<br> <br> How many more reference numbers must i wait or get from Simba regarding this.