Edgars No_Thank you!

I visited Edgars Cornubia mall on the 2nd April 2018. I heard on the instore radio that if you purchased for R300 you would receive 100 000 thank you points, I also remembered then I had received an sms to that effect some days before. I picked up a paid of pants marked at R299 and another item for R20, went to the till and the cashier tells me that the price of the pants is now discounted on the till , even though the tag says R299, so the total doesn't reach R300 and he told me to go get something else to add to pants purchase so that I could get my 100 000 points, so I go back, wasting my time, and choose another item , my purchase then comes to over R305, and the cashier told me that the 100 000 points (R100) would reflect the next day. It didn't! I visited Edgars cornubia later in the week, spoke to a till operator who lodged my complaint , sent an email to the store who sent it to head off, with my sms from Edgars about the thank you points promotion. Still no reply. Please give me my 100 000 points.