Galaxy S9 complimentary items not recieved.

On March 31st 2018, i purchased a Samsung Galaxy S9 with a Vodacom promotion that, when ordered on Samsung Rewards (which i did the day I received the phone) , was supposed to come with a complimentary Level U Flex and a wireless charger. Weeks past and i still did not receive the items. I went to the vodacom store where the phone was purchased and i was told the fault is Samsungs. I have spoken to Samsung representatives who have taken the matter further but my issue is yet to be resolved. It has been 5 months, i have spoken to many employees of Samsung and Vodacom and nobody seems to have the knowledge to explain why my items have not been shipped yet. I have all the purchase information about the device and the promotion. As well as the order information of the S9 promotion on Samsung Rewards. I hope someone can get back to me ASAP and help fix this issue.