OMO liquid special or is it?

I went onto the Checkers website and tried to find out why there is a special on there, yet no one in the stores know about it. I went to Checkers Bonaero Park, as well as Checkers Hyper Edenvale. At both stores I spoke to the managers, no one seemed to know about the OMO Liquid 1.5lt special (2 for R90) (valid until 19 July)

I even tried contacting someone else via your website, and 3 days later still no reply. Would love to know how you advertise something, but I'm not able to buy it.... so what's the point? If you not sure about what I'm talking about, I have a screenshot to help you out.