Con artists no free gift

Recently bought a Samsung Galaxy Note 9 at vodacom centurion and recieved a voucher for three free gifts. I tried claiming the prizes on samsung app. Even wrote to their customer service center on the site but still no respond. I than wrote a hello Peter complain against vodacom who than responded that although I purchased the phone with them the gift was with samsung and they unfortunately couldn't help me with it. I feel like samsung has failed me regarding this as it is false advertising as my gift has still not being delivered as promised.