Vodacom **** Online Voucher

I wanted to upgrade online mid November 2019 but was not able to. I contacted the call center, they could not assist me. After the 4th call an agent told me that I'm still om the old system. Never the less they called me back and the upgrade was done over the phone. I was supposed to receive a R1000 online accessory voucher as advertised on their website. I have contacted the call center numerous times since 18 November, logged a couple of queries with *** as mentioned on the website, got zero feedback. Logged a ticket with *** received a ticket(54208) and 2 days later got a mail stating my request was closed hopefully to my satisfaction. Re logged a request got a new ticket 54445 same story....It is now more than a month and I still have not receive any feedback from Vodacom to redeem my voucher. I called the call center again last week, they again escalated my query but I do not know to who....Vodacom promised me a R1000 voucher...that is all I want and nothing more...This is for me terrible terrible service from the country's largest mobile service provider. How difficult can it be to help a customer. I have been with Vodacom for almost 16 years and they cant even sort this out....damn