Samsung S20 with ear buds Promotion MISPRESENTED by Samsung Marketer

My husband purchased a Samsung S20 from (Samsung Voda World ) on 12/06/2020. With the sale he was told by the Samsung Marketer that when buying the Samsung S20 there is a promotion running and that he will receive Blue Tooth Ear buds. He was even assisted by the marketer to redeem the buds via the phone with the reference on the till slip. A screen shot was taken to keep as reference of redeeming the buds. He was told that it could take longer than 2 week to be delivered due to Covid and the lock down. We waited and waited and waited. Nothing was received. My husband went back to Voda World on 06/09/2020 to consult with the marketer and was told that he had to follow up with Samsung directly. Kind enough the Marketer assisted my husband to lock the call with Samsung. We were then contacted by a lady called Samsung on 27/10/2020 to confirm delivery address and she the confirmed that it will be delivered within 2 week. Again we waited and waited and waited. Nothing was received. 11/01/2021 I, contacted Samsung with the reference number and spoke to Matapelo. She then apologized and said she will escalate it to be resolved. Later the same day I was contacted by M. Kholofelo asking me to send proof of purchase to her email in order to proceed with the request. I then send Kholofelo the proof of purchase along with the screen shot made of redeeming the buds. 12/01/2021 I phoned Samsung to follow up if the mail was received. Kholofelo confirmed that email with proof was received by her and that she will give me feedback within 48 hours. That did not happen. 14/01/2021 After the 48 hours had expired I phoned Kholofelo again and she then stated that by husband had purchased the phone after the promotion already expired. Now, my husband did not go to Voda World (Samsung) to purchased the phone with ears buds. He was mispresented with the fact that if he does buy the phone the fact is that he will receive the ear buds. Samsung is not assisting and not taking ownership of them mispresenting my husband with info that was not accurate.