Complaint against checkers hyper menlyn park mall

I visited the checkers hyper Menlyn park mall today on the 20th of November 2024 and the service i got was very unpleasant. I went to buy air fryers which i saw on special and on the adverti*****t the special was to end of the 27th of November 2024. So when i get there first where i took the air fryers ,they didn't place any price what so ever where they had packed them i then took them and when i got to the till they are telling me that the special is no longer on, i then asked how is that because it is supposed to end on the 27th as advertised then they said it ended on the 10th. I then asked to see the manager, the stock manager that came was Dinah who came to me with very bad attitude i was trying to explain to her that there is no way i came to the store and also as advertised online that the special ends on the 27th and when i get here you guys are telling me a different story. She then started to shout while talking to me then after when she felt that im still not agreeing to what she is saying she decided to just leave without solving my issue. I then asked the cashier to call someone who is her (dinah) superior then the white guy who is apparently the branch manager then came still addressing me with attitude. He then tells me that they received communication yesterday on the 19th that they should take out the advert in store, now they are contradicting themselves because Dinah said the special ended on the 10th so if it ended on the 10th how is it that they received communication yesterday? Another reason why all this doesn’t make sense to me is that on the 19th i bought the two airfryers for my colleagues and the special was app****. As a client i am honestly not happy with this service because firstly i felt disrespected by both managers because when they came they both were ready for a fight, secondly i was on lunch and these managers wasted my time because of their incompetence i spent my lunch hour at the store and none of them were assisting me with anything because all they did was argue but did not provide any way forward with regards to the matter. Checkers hyper Menlyn park mall should honestly train their staff to be able to address customers with respect as i am a paying customer and if i do not understand something they have to explain to me with respect and they also need to false advertise things, if they say a special is ending on a certain date they need to honour that as a company