MANAGEMENT AND CONSULTANTS...... memeber app redeem gift voucher

Samsung first all all your customer service is disgusting. I have been waiting more than 3 weeks for promotions department to send me my online gift voucher I have made more than 60 calls to Samsung head office and promotions department. And no luck I have spoken to so many manager and consultants and none of them are coming to the party. Even had consultants lie about there managers names when phoning they say that a manger with that name does not even work there. Manager saying they are on a call phone u back waiting 4 hours later and nothing happens. Manager phoning and agreeing that I as the customer is correct will escalate and get back to me 2 days go past no feedback. This is absolutely disgusting.