Bad service from till operator

On the 5th April 2024 at 12:15pm at KFC Maponya mall was ordering streetwise bozza for R30 the one with the mini twister cashier refused to sell it saying I have to add and extra R10 informed her I bought the meal for my child the previous day and was not charged extra she called her fellow colleague who imp**** the same was so ****ed, amazed how come they don't know their promotions or does she not know how to select the promo on the till opted for the one which comes with one piece even though I knew my daughter wanted the mini twist meal.. After handing my slip she made remarks that meal for R30 won't come with a cold drink I shall see I did not respond as I told her it's not my first tome time purchasing my promo I bought the previous day at a KFC in Diepkloof Square and had no hassles or do they take advantage because we in the township they can speak to us anyhow.. Really their staff should be called into order or taken to training for customer service.