Promotion offer for December free Flight Centre voucher no voucher given.

Good Day, I purchased a Samsung Galaxy Note 8 on the 11th December 2017 from Vodacom 4me in Cavendish Sqare. The vodacom stores advertised this December 2017 offer in their store magazines offering a free Flight Centre voucher valued at R5000.00 with this Sumsung model. Amira who assisted me said I would receive an SMS with a link to redeem my voucher from Flight Centre. I called the next day 12/12/17 to inform her that I didn't receive the SMS. She called me to come back to the store the next day to see the Samsung rep. I went on the 13/12/17 and met Lewellyn from Sumsung. He submitted the proof of purchase and serial numbers as required. I Received an email to submit again on the 22/12/17 and again 28/12/17. I now received an email to say the message not sent I would like to know if this is a **** as Vodacom says it's a Samsung offer. The emails that I sent the information goes to Vodacom ********** I'm very concerned as they said I only get a month to redeem this voucher from Flight Centre. I have wasted lots of time sending the same info regarding my purchase to them. December is gone and it's a new year. I am a vodacom customer since 1996 and never benefited from any special offers. Really annoyed with all this inconvenience. Please assist if possible. Regards. Fazlin Samodien