Samsung Zflip R3000 voucher

Hi I am EXTREMELY DISAPPOINTED IN A COMPANY LIKE SAMSUNG 😡Dis is suppose to b such a huge company and i would expect them to keep to their promises. We bought a Zflip Samsung from Vodacom Sandton, Nelson Mandela square and were promised a R3000 voucher. We registered in time. However it kept sending us messages like "your Imei no is not clear" we sent bac multiple times different ways. Then wen we went on Holiday we were so stressed coz it said u can only claim until the 23rd of January. So whilst on holiday we found a Samsung store in Gateway Umhlanga we asked the guy at da store to assist. He even called in n tried. But still it saud only Imei no is not clear. We have tried multiple times and even logged a call. Only for the lady to say its not der section that deals with it. I need to call back again. We tried calling and number doesnt go through. But till today my husband cannot seem to claim his R3000 voucher. I am highly disappointed 😥