Rude manager

I went to FASHION FUSION MARKADE building got to the shop they were running a 30% off "All jackets and knitwear" items saw a grey Knitop on 30% hangers asked if they had matching skirt, went looking around for it and indeed it was available also on 30% off hangers. Got excited and asked for a size the guy assisting me checked with the lady if it was also on markdown and she confirmed yes it was all knitwear. Got to the teller to pay the price wasn't marked down. showed the lady the 30% ad in their store she called the manager "Benny" for assistance. He made it seem like I was at fault as the tag could have been moved by other customers, my question to him was why his staff didn't correct me during our conversation or move the tag if it was place in incorrect hangers; he had no answer but rudely conversated with his staff and loaded the discount.

There was no apologies offered to me for the inconvenience and time wasted.