Samsung False advertising - MTN

Hi,

I Upgraded my MTN Cellphone package on the 1st October 2018.

With this upgrade, I would receive a Samsung Fit Watch valued at R2999 and a R500 discount voucher on Samsung accessories.

Now...

I have contacted Samsung to claim my watch and have had no constructive feedback since the 1st October 2018 - So i have not received this watch yet or any sign that i am going to.

I have enquired to why my discount Voucher for R500 is not valid as it has expired and no feedback either.

Who and how do i go about this to claim my items which i Purchased - This is false advertising from Samsung - I just want to return my handset to MTN and look for other viable Service providers.

Surely, we cannot struggle like this.

Regards Tyrone Lu****