Will not honour reward

On the 15 December 2017 i took up a contract renewal for a samsung s8 cell phone in order to recieve a free 32inch tv for a special running 15 to 17 December 2017. I was told we can redeem our tv on the samsing rewards app. No tv was ever loaded. We emailed both samsung and got a reply from Marlize stating digital planet will be in contact. I emailed both samsung and figital planet our proof of purchase and delivery document showing 15 December. We have been pushed from pillar to post with no resolution. Today 28 December we called and spoke with Olwethu who told us we don't qualify as our phone was avtivated on the 14th a day BEFORE the special was running. Therefore we are not eligible. I am raging as this is the only reason i upgraded. I need help in resolving this issue as soon as possible.