Bad service

I went to white river spar in mpumalanga and had the most disgusting service from a cashier named Kedibone. I had a R200 note and wanted to buy an Easter egg for my child. 1st she said she doesn't have change. So I let the next client go in coz they had a R100. When she opened her till she had a ll the change in the world. I really had to force her to sell to me. Then she just put my change on the speed point holder n just dismissed me. I'm very dissatisfied as I've been using taht spar for more than 10 yrs. I dont know if she thinks I owe her something by buying there.