Vodacom - All promise but no performance !!!

I upgraded three of my contracts during December 2017. I took 2 x Samsung S8s and 1 x Samsung Note 8. With these contracts I were supposed to receive Flight Centre Vouchers or explanations of how to get them to the value of R 15 000. It was nationally advertised. Up until today I have not received it. Thanks to Vodacom, of which I am a customer for more than15 years now, I can not utilise any of the vouchers to help my son to get to his first ever National Athletics meeting in Paarl in less than two weeks time. Now I must take out a loan to cover all the costs of which the flight tickets are the most expensive. I am so frustrated now. You are loyal to a brand but when you need it most the loyalty just do not get returned.