Non Recipients of Debonairs vouchers from Multi Choice Box Office

We had received an sms from multi choice promoting box office and if we hired 2 box office movies by the 22nd of September we qualify for a R100 Debonairs voucher. We also qualified for the first movie hired to be free because of us being first time users off box office. We had hired both movies on the 21st of September with one movie being free but have still not received the debonairs voucher. We had contacted mulit choice numerous times since then and have gotten nowhere with them. They had advised us that there is no such specials being run on box office. We have an sms as proof to which means nothing to them. Please assist.