Review Poor service cashier

22/10/20 at 693 woodlands ave 6 time 20:15, I approached to counter 1 as no customer, cashier named may kneeled down without aware of me at counter, I placed hardly my stuffs to alert cashier but no respond. Then I voiced out "hello" to her, she stood up with black face without greet, after transaction she rudely said"5cents balance!" , I were stunt of her attitude, she gave me the receipt without saying thank you to me. I feedback to the store supervisor, he heard of this incident and said will talk to this poor attitude cashier.