Chasier added Extra's without my approval

I was very disappointing when i went to buy at Nando's Colombo I wanted a kiddies meal for R42 which comes with 3 chicken strips, salad, corn and still water as how i normally purchase at Nando's Cottonland however the cashier that was serving me Buhle she added the extras(liqui fruit and puddle pop ) without informing me, of which at first she gave me the puddle pop and i did not want it and i told her I'd rather take the liqui fruit and she gave me. i am mad because i don't understand hwy she added the extras without my concern which is R 14 extra to my bill.