False promises on Black Friday special

They promoted a Black Friday special in November but I was only able to get my line in December. I phoned Balwin Fibre head office directly and asked them if I APPLY in November during the Black Friday special but my ISP only REQUESTS the line in December does that mean I can still get the special - they said yes. As long as my ISP shows that I app**** during the special in November I can get the special in December. We are now in December and Balwin Fibre has changed their minds. Now I need to pay full price for the service. Bunch of *****. They should just have said that I cannot get the special if the request from the ISP comes through in December. FIY the special was R150p/m LESS for DOUBLE speed so it was a great offer. Just unfortunate that they make false promises