Breaking rules of the Consumer Act.

On the 20/6 i bought myself an Adidas and a TomTom sneakers. On the 21/ 6 i returned to buy my Son and daughter sneakers. My daughter did not like anything there however we found something for my Son....Van's sneakers. It was marked down for R 699 . Upon arriving at the till the sneakers was now R999 of which the very rude lady till assisstant ask me if i am gonna pay the R999. On which i said No. She yelled Next ...for Next customer. Totally dismissed me no apology no explanation. I end up leaving the shop without the sneakers as i was accompanied by my Daughter and did not wanted to get in an altercation.