Incorrect Phone supp**** as well as ****** me for my voucher

I took a contract online for a phone that comes with a R1000 Accessories Voucher as I needed a new phone urgently for my mum. Contract was processed without any issues. 2 weeks later the consultant phones me to say that they don't have stock of the R1000 accessories voucher. I requested to send me the Phone and send me the voucher whenever there is stock. Same day he processed the order and I received the phone few days later. I was then told that I will not be getting the voucher as I already received the Phone. Secondly I ordered a Black phone but I received a Lime coloured phone. I asked the consultant to please get his Manager to call me and assist with the matter. It is now gone 1 month and I haven't received a call from him or the Manager. I lost a R1000 voucher which was part of my contract that I am paying for.I think it is unfair as I should be reimbursed or at least sent a voucher. Service was terrible.