Need assitance on their marketing promo

HI

I upgraded on the 23rd of November at Vodacom Vredenburg Mall where there was a promotion for a watch and earbuds, when you upgraded

When I upgraded I asked them to update my address instore, they made a copy of my details but seems they did not action it on their side.

When I called in to ask what is the status it was not actioned only 10days after I called for a second time then they updated it on they system, I advised the consultant and manager that I have received no feedback from Samsung and asked for assistance,

Vodacom said its not their promtion not their ****** they only sold the promotion and can not help, they said I needed to call samsung if I need assistance or go onto to watsapp. The consultant said it will be 7-14days then the order will be delivered.

Its been 3 weeks (15 working days) and no one has contacted me, I have called both Vodacom and Samsung numerous times send send numerous emails, sent numours watsapps and not getting anywhere, please advise how we need to proceed?

Samsung does not answer the contact number that was provided and the second one does not exist/ its invalid, when I go to courier it says the reference is not found?

What can / should I do from my side to get this sorted please?