I received the call from samsung 1 month ago, Agent said that your earbuds delivered in 15 days but I didn't received yet.Can anyone help me in this issue

I filled the redemption form on 28 march my vocher is going to expire on 30 april but i havent got any confirmation call about the airbuds still today i got a notification that your voucher is going to expre soon i also have a screen shot of the rede...