MTN 100GB promotion - Empty promises

I app**** online for the 100GB black Friday promotion and received emails with reference numbers. I did 5 applications. the first application was done in the last week of November. Until date, no one can assist me with my application. Other service providers have a turn around time of 48 hours from online applications. The mtn call center which is run by the rewards company called me twice but they cannot pick up my applications and is only offering a different package as they cannot find the 100Gb promotion on their system. (the deal code does not exist) but they can offer me a different package. I communicated to the social media Facebook MTN group on private messenger and they advise me to call into the call center. The MTN customer care call center told me directly that they cannot assist me it is only online. Please don't advertise a promotion if you cannot assist the public. I have never experienced this service from other network providers and I'm considering changing my network provider asap