Marketing Team don't honor promotions.

I contacted you guys on Tuesday to partake in your R400 / R800 promotion that you have to beat my insurance. I spoke to a really amazing agent named James who did his best but could not beat my current premium. He said he would send me the form and I put the phone down feeling really impressed by the service received from outsurance as I was not even a customer - a potential future customer - but not one yet. I received the form as promised completed it, gave you my current policy as well as my past policy and thought that was it. I received an SMS to say i would be getting R400.00 on the 18th October. I tried to call you guys that day to enquire why I was only getting the R400.00 as I have been claim free for more than 3 years therefore I should qualify for the R800.00. i got through to an agent who advised that the marketing team had left for the day howevre she would pass on my details for a call back the next day. I also sent an email to ***. The next day came and no call back and no response to my email. I called again to be told that the marketing team had left for the day, i responded to the email to ask for feedback and still nothing. I am not greedy for money however I feel I should have received the FULL promotion as you couldnt beat my premium and I have been claim free? I didnt want to lay this complaint but I cant seem to get a call back from your marketing team to address my concerns. I was really impressed by outsurance but now I am feeling let down.